The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A008294 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A008294

Triangle of coefficients in expansion of D^n (sec x) / sec x in powers of tan x.
(history; published version)

#42 by Michael De Vlieger at Thu Dec 16 22:32:33 EST 2021

STATUS

reviewed

approved

#41 by Michael De Vlieger at Thu Dec 16 22:32:31 EST 2021

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proposed

reviewed

#40 by Jon E. Schoenfield at Thu Dec 16 22:19:26 EST 2021

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editing

proposed

#39 by Jon E. Schoenfield at Thu Dec 16 22:19:24 EST 2021

FORMULA

a(0, k) = delta(0, k); a(n+1, k) = k*a(n, k-1) + (k+1)*a(n, k+1).

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#38 by Susanna Cuyler at Fri Nov 03 22:19:53 EDT 2017

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proposed

approved

#37 by Rachel Barnett at Fri Nov 03 12:59:08 EDT 2017

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editing

proposed

#36 by Rachel Barnett at Fri Nov 03 12:58:59 EDT 2017

LINKS

J. Francon, <a href="/A006157/a006157.pdf">Histoires de fichiers</a>, RAIRO Informatique Théorique et Applications, 12 (1978), 49-62. (Annotated scanned copy)

STATUS

approved

editing

#35 by Bruno Berselli at Mon Oct 16 12:20:56 EDT 2017

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reviewed

approved

#34 by Joerg Arndt at Mon Oct 16 04:42:58 EDT 2017

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proposed

reviewed

Discussion

Mon Oct 16

04:50

Michel Marcus: thanks

#33 by Joerg Arndt at Mon Oct 16 04:42:53 EDT 2017

STATUS

editing

proposed