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A295447
a(n) = (14*n)!*(3*n)!/((9*n)!*(7*n)!*n!).
1
1, 286, 196650, 152743696, 125117624170, 105603640815036, 90864922211333424, 79239192984544856640, 69787746378451035806058, 61932198387397883017437250, 55292497255461005096459802900, 49606246898694412506503464226400, 44685036796879893398022369751697200
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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
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Last modified September 1 11:12 EDT 2024. Contains 375589 sequences. (Running on oeis4.)