The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A001413 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A001413

Number of 2n-step polygons on cubic lattice.
(history; published version)

#34 by Alois P. Heinz at Thu Feb 29 11:28:04 EST 2024

STATUS

proposed

approved

#33 by Pontus von Brömssen at Thu Feb 29 11:19:14 EST 2024

STATUS

editing

proposed

#32 by Pontus von Brömssen at Thu Feb 29 11:18:35 EST 2024

LINKS

M. F. Sykes et al, D. S. McKenzie, M. G. Watts, and J. L., Martin, <a href="https://doi.org/10.1088/0305-4470/5/5/007">The number of self-avoiding walks on a lattice</a>, J. Phys. A 5 (1972), 661-666.

CROSSREFS

Cf. A001409.

KEYWORD

nonn,walk,more,changed

STATUS

approved

editing

#31 by Alois P. Heinz at Wed Feb 28 16:48:19 EST 2024

STATUS

editing

approved

#30 by Alois P. Heinz at Wed Feb 28 16:48:16 EST 2024

EXTENSIONS

a(13)-a(16) (using A001409) from Alois P. Heinz, Feb 28 2024

#29 by Alois P. Heinz at Wed Feb 28 16:46:36 EST 2024

DATA

0, 24, 264, 3312, 48240, 762096, 12673920, 218904768, 3891176352, 70742410800, 1309643747808, 24609869536800, 468270744898944, 9005391024862848, 174776445357365040, 3419171337633496704

STATUS

approved

editing

#28 by Peter Luschny at Tue Jul 28 11:14:06 EDT 2020

STATUS

reviewed

approved

#27 by Joerg Arndt at Tue Jul 28 02:14:38 EDT 2020

STATUS

proposed

reviewed

Discussion

Tue Jul 28

02:42

Michel Marcus: A001409 goes up to index 16 so you could add 4 terms and keyword more

#26 by Sean A. Irvine at Mon Jul 27 19:45:59 EDT 2020

STATUS

editing

proposed

#25 by Sean A. Irvine at Mon Jul 27 19:45:48 EDT 2020

FORMULA

a(n) = 4*n*A001409(n). - Sean A. Irvine, Jul 27 2020

STATUS

approved

editing