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#56 by R. J. Mathar at Tue Aug 23 14:04:22 EDT 2022
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#55 by R. J. Mathar at Tue Aug 23 14:04:15 EDT 2022
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Mednykh, A.; Nedela, R. <a href="https://doi.org/10.1007/s10958-017-3555-5">Recent progress in enumeration of hypermaps</a>, J. Math. Sci., New York 226, No. 5, 635-654 (2017) and Zap. Nauchn. Semin. POMI 446, 139-164 (2016), table 5
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approved
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#54 by N. J. A. Sloane at Mon Aug 24 23:07:09 EDT 2020
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#53 by N. J. A. Sloane at Mon Aug 24 23:07:07 EDT 2020
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#52 by OEIS Server at Sun Jan 20 06:30:54 EST 2019
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Gheorghe Coserea, <a href="/A214818/b214818_1.txt">Table of n, a(n) for n = 1..107</a> (corrected by Georg Fischer, Jan 20 2019)
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#51 by Georg Fischer at Sun Jan 20 06:30:54 EST 2019
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Discussion
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| OEIS Server: Installed new b-file as b214818.txt. Old b-file is now b214818_1.txt.
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#50 by Georg Fischer at Sun Jan 20 06:30:33 EST 2019
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Gheorghe Coserea, <a href="/A214818/b214818_1.txt">Table of n, a(n) for n = 71..107</a>> (corrected by _Georg Fischer_, Jan 20 2019)
Timothy R. Walsh, <a href="http://www.info2.uqam.ca/~walsh_t/papers/GENERATING NONISOMORPHIC.pdf">Space-efficientEfficient generationGeneration of nonisomorphicNonisomorphic mapsMaps and hypermapsHypermaps</a>
T. Timothy R. Walsh, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL18/Walsh/walsh3.html">Space-Efficient Generation of Nonisomorphic Maps and Hypermaps</a>, J. Int. Seq. 18 (2015) # 15.4.3.
P. Peter G. Zograf, <a href="https://doi.org/10.1093/imrn/rnv077">Enumeration of Grothendieck's Dessins and KP Hierarchy</a>, International Mathematics Research Notices, Volume 2015, Issue 24, 1 January 2015, 13533-13544.
Peter G. Zograf, <a href="https://arxiv.org/abs/1312.2538">Enumeration of Grothendieck's Dessins and KP Hierarchy</a>, arXiv:1312.2538 [math.CO], 2014.
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Cf. A00108, A000257, A118093, A214817, A003319.
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#49 by Joerg Arndt at Thu Dec 27 05:50:31 EST 2018
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G.f.: y*(y - 1)^7*(5*y^9 - 60*y^8 + 675*y^7 - 2947*y^6 + 10005*y^5 - 20235*y^4 + 28297*y^3 - 23937*y^2 + 11418*y - 1781)/(2*(y - 2)^12*(y + 1)^9), where y = C(2*x), C being the g.f. for A000108. - Gheorghe Coserea, Nov 12 2018
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proposed
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#48 by Gheorghe Coserea at Thu Dec 27 05:32:25 EST 2018
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Discussion
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| Thu Dec 27
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| Michel Marcus: why do you remove the formula; a formula is important
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| Gheorghe Coserea: two reasons: the first is I don't agree with the change; the second is that it was approved by the same person that did the change.
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| Joerg Arndt: FFS, stop this nonsense!
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#47 by Gheorghe Coserea at Thu Dec 27 05:32:22 EST 2018
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G.f.: y*(y - 1)^7*(5*y^9 - 60*y^8 + 675*y^7 - 2947*y^6 + 10005*y^5 - 20235*y^4 + 28297*y^3 - 23937*y^2 + 11418*y - 1781)/(2*(y - 2)^12*(y + 1)^9), where y = C(2*x), C being the g.f. for A000108. - Gheorghe Coserea, Nov 12 2018
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