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A107398 a(n) = binomial(n+7, 7) * binomial(n+9, 7). 1
36, 960, 11880, 95040, 566280, 2718144, 11042460, 39262080, 125147880, 364066560, 979945824, 2466996480, 5859116640, 13220570880, 28506855960, 59025960576, 117846969900, 227667211200, 426876021000, 778861512000, 1386019463400, 2410468632000, 4104188068500 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Andrew Howroyd, Table of n, a(n) for n = 0..1000

EXAMPLE

If n=0 then C(n+7,7)*C(n+9,7) = C(7,7)*C(9,7) = 1*36 = 36.

If n=4 then C(4+7,7)*C(4+9,7) = C(11,7)*C(13,7) = 330*1716 = 566280.

PROG

(PARI) a(n)={binomial(n+7, 7) * binomial(n+9, 7)} \\ Andrew Howroyd, Nov 08 2019

CROSSREFS

Cf. A062196.

Sequence in context: A011811 A167250 A218177 * A053111 A260855 A130563

Adjacent sequences:  A107395 A107396 A107397 * A107399 A107400 A107401

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos, May 25 2005

EXTENSIONS

a(3) corrected and terms a(8) and beyond from Andrew Howroyd, Nov 08 2019

STATUS

approved

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Last modified May 18 07:26 EDT 2021. Contains 343995 sequences. (Running on oeis4.)