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A077568 a(1,n) as defined in A003148. 2
1, -1, 11, -39, 633, -4065, 86355, -818055, 21370545, -270059265, 8348125275, -132575387175, 4724044288425, -90632895177825, 3652562288650275, -82321915303002375 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..15.

FORMULA

Conjecture: a(n) +a(n-1) -2*(2*n+1)*(n-1)*a(n-2)=0. - R. J. Mathar, May 26 2016

MAPLE

A003148 := proc(m::integer, n::integer) RETURN( doublefactorial(2*n+2*m+1)/(2*m+1)*simplify(hypergeom([ -n, m+1/2], [m+3/2], 2))) ; end proc:

A077568 := proc(n::integer) A003148(1, n) ; end proc:

for n from 0 to 20 do print(A077568(n)); od: # R. J. Mathar, Apr 25 2006

CROSSREFS

Cf. A003148, A084543.

Sequence in context: A127867 A138050 A183940 * A122014 A031427 A147296

Adjacent sequences:  A077565 A077566 A077567 * A077569 A077570 A077571

KEYWORD

sign

AUTHOR

R. J. Mathar, Jul 01 2003

EXTENSIONS

More terms from R. J. Mathar, Apr 25 2006

STATUS

approved

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Last modified December 15 17:03 EST 2019. Contains 330000 sequences. (Running on oeis4.)