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A104476 a(n) = binomial(n+7,7)*binomial(n+11,7). 1
330, 6336, 61776, 411840, 2123550, 9060480, 33372768, 109219968, 324246780, 886828800, 2261413440, 5427392256, 12352970916, 26829982080, 55895796000, 112183843200, 217706770710, 409800980160, 750266946000, 1339149240000, 2335141487250, 3985308138240 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

T. D. Noe, Table of n, a(n) for n = 0..1000

EXAMPLE

a(0): C(0+7,7)*C(0+11,7) = C(7,7)*C(11,7) = 1*330 = 330;

a(7): C(7+7,7)*C(7+11,7) = C(14,7)*C(18,7) = 3432*31824 = 109219968.

MATHEMATICA

f[n_] := Binomial[n + 7, 7]*Binomial[n + 11, 7]; Table[ f[n], {n, 0, 19}] (* Robert G. Wilson v, Apr 20 2005 *)

PROG

(PARI) vector(30, n, n--; binomial(n+7, 7)*binomial(n+11, 7)) \\ Michel Marcus, Jul 31 2015

(MAGMA) [Binomial(n+7, 7)*Binomial(n+11, 7): n in [0..30]]; // Vincenzo Librandi, Jul 31 2015

(Python)

A104476_list, m = [], [3432, -1716, 660, 330, 330, 330, 330, 330, 330, 330, 330, 330, 330, 330, 330]

for _ in range(10**2):

    A104476_list.append(m[-1])

    for i in range(14):

        m[i+1] += m[i] # Chai Wah Wu, Dec 15 2015

CROSSREFS

Sequence in context: A126997 A205993 A027807 * A140908 A256586 A319718

Adjacent sequences:  A104473 A104474 A104475 * A104477 A104478 A104479

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos, Apr 18 2005

EXTENSIONS

More terms from Robert G. Wilson v, Apr 20 2005

STATUS

approved

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Last modified March 31 19:37 EDT 2020. Contains 333151 sequences. (Running on oeis4.)