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A006563 (2*n)!-Sum ((-1)^(i+1)*binomial(n,i)*2^i*(2*i-1)!,i=1..n). 0
1, 0, 44, -174, 117256, -7589530, 2965194588, -692238710870, 349381845013136, -172725188707732914, 125191334490221307940, -102149999612542557845422, 105262879332307879142908440, -125296099002304850701565276234 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..13.

CROSSREFS

Sequence in context: A010023 A084026 A235407 * A159033 A238249 A189547

Adjacent sequences:  A006560 A006561 A006562 * A006564 A006565 A006566

KEYWORD

sign

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 18 10:10 EDT 2018. Contains 316320 sequences. (Running on oeis4.)