A295447 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A295447

a(n) = (14*n)!*(3*n)!/((9*n)!*(7*n)!*n!).

1, 286, 196650, 152743696, 125117624170, 105603640815036, 90864922211333424, 79239192984544856640, 69787746378451035806058, 61932198387397883017437250, 55292497255461005096459802900, 49606246898694412506503464226400, 44685036796879893398022369751697200

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

FORMULA

G.f.: hypergeom([1/14, 3/14, 5/14, 1/2, 9/14, 11/14, 13/14], [1/9, 2/9, 4/9, 5/9, 7/9, 8/9], 13492928512/14348907*x).

CROSSREFS

Cf. A295431.

Sequence in context: A306144 A130433 A140926 * A203049 A306788 A259402

Adjacent sequences: A295444 A295445 A295446 * A295448 A295449 A295450

KEYWORD

nonn

AUTHOR

Gheorghe Coserea, Nov 27 2017

STATUS

approved