The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A026908 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A026908

T(2n,n), T given by A026907.
(history; published version)

#10 by Alois P. Heinz at Sun May 10 15:07:57 EDT 2020

STATUS

proposed

approved

#9 by Michel Marcus at Sun May 10 15:01:12 EDT 2020

STATUS

editing

proposed

#8 by Michel Marcus at Sun May 10 15:01:07 EDT 2020

FORMULA

a(n) = 4^n*GAMMA(n+1/2)*(38+99*n+49*n^2)*Pi^(-1/2)/GAMMA(n+3)-18 - (based on guessed recurrence ) - _Mark van Hoeij, _, Oct 30 2011.

CROSSREFS

Cf. A026907.

STATUS

approved

editing

#7 by Russ Cox at Fri Mar 30 18:56:11 EDT 2012

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

Clark Kimberling

Discussion

Fri Mar 30

18:56

OEIS Server: https://oeis.org/edit/global/285

#6 by N. J. A. Sloane at Mon Oct 31 00:32:02 EDT 2011

STATUS

proposed

approved

#5 by Mark van Hoeij at Sun Oct 30 20:38:10 EDT 2011

STATUS

editing

proposed

#4 by Mark van Hoeij at Sun Oct 30 20:37:41 EDT 2011

FORMULA

a(n) = 4^n*GAMMA(n+1/2)*(38+99*n+49*n^2)*Pi^(-1/2)/GAMMA(n+3)-18 - based on guessed recurrence - Mark van Hoeij, Oct 30 2011.

STATUS

approved

editing

#3 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003

KEYWORD

nonn,new

nonn

AUTHOR

Clark Kimberling, (ck6(AT)evansville.edu)

#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

KEYWORD

nonn,new

nonn

AUTHOR

Clark Kimberling, ck6@cedar.(AT)evansville.edu

#1 by N. J. A. Sloane at Sat Dec 11 03:00:00 EST 1999

NAME

T(2n,n), T given by A026907.

DATA

1, 44, 198, 758, 2824, 10530, 39516, 149274, 567120, 2164898, 8297206, 31907214, 123053938, 475753142, 1843357752, 7155936162, 27826486272, 108369397602, 422614721742, 1650118887102, 6450143419962, 25238550057222

OFFSET

0,2

KEYWORD

nonn

AUTHOR

Clark Kimberling, ck6@cedar.evansville.edu

STATUS

approved