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A104673 C(n+5,5)*C(n+10,n+0) 0
1, 66, 1386, 16016, 126126, 756756, 3699696, 15402816, 56316546, 184940756, 554822268, 1540663488, 4001445448, 9802357488, 22805484768, 50678855040, 108088495515, 222161129190, 441579528390, 851355545040, 1596291646950, 2917485413700, 5208073135200 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

G.f.: (252*x^5+1050*x^4+1200*x^3+450*x^2+50*x+1)/(x-1)^16 [From Harvey P. Dale, Nov 24 2011]

EXAMPLE

If n=0 then C(0+5,5)*C(0+10,0+0)= C(5,5)*C(10,0)=1*1=1

If n=6 then C(6+5,5)*C(6+10,6+0)= C(11,5)*C(16,6)=462*8008=3699696

MATHEMATICA

Table[Binomial[n+5, 5]Binomial[n+10, n], {n, 0, 30}]

CROSSREFS

Cf. A062190.

Sequence in context: A027785 A196789 A168123 * A133318 A197645 A140925

Adjacent sequences:  A104670 A104671 A104672 * A104674 A104675 A104676

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos (zlaja(AT)freemail.hu), Apr 22 2005

EXTENSIONS

Corrected and extended by Harvey P. Dale, Nov 24 2011

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Last modified February 16 17:11 EST 2012. Contains 205938 sequences.