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A062512 a(n) = floor( gamma(n/4) * gamma(n+1)/4 ). 1
0, 0, 1, 6, 27, 159, 1158, 10080, 102786, 1205977, 16050140, 239500800, 3968569039, 72431014665, 1445957143579, 31384184832000, 736725156413938, 18617668009588286, 504407689966441334, 14597412049059840000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..390 (terms 1..100 from Harry J. Smith)

MATHEMATICA

Table[Floor[Gamma[n/4]*Gamma[n + 1]/4], {n, 1, 50}] (* G. C. Greubel, Jan 15 2018 *)

PROG

(PARI) for(n=1, 20, print1(floor(gamma(n/4)*(gamma(n+1)/4)), ", "))

(PARI) { default(realprecision, 300); for (n=1, 100, write("b062512.txt", n, " ", (gamma(n/4)*(gamma(n + 1))\4)) ) } // Harry J. Smith, Aug 08 2009

(MAGMA) [Floor(Gamma(n/4)*Gamma(n + 1)/4): n in [1..30]]; // G. C. Greubel, Jan 15 2018

CROSSREFS

Sequence in context: A018901 A215704 A137968 * A087297 A117336 A202766

Adjacent sequences:  A062509 A062510 A062511 * A062513 A062514 A062515

KEYWORD

easy,nonn

AUTHOR

Jason Earls, Jun 24 2001

EXTENSIONS

Terms corrected by Harry J. Smith, Aug 08 2009

STATUS

approved

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Last modified January 24 19:03 EST 2022. Contains 350565 sequences. (Running on oeis4.)