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Search: id:A104672
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A104672 C(n+4,4)*C(n+9,n+0) +0
1
1, 50, 825, 7700, 50050, 252252, 1051050, 3775200, 12033450, 34763300, 92470378, 229265400 (list; graph; listen)
OFFSET

0,2

EXAMPLE

If n=0 then C(0+4,4)*C(0+9,0+0)= C(4,4)*C(9,0)=1*1=1

If n=6 then C(6+4,4)*C(6+9,6+0)= C(10,4)*C(15,6)=210*5005=1051050

CROSSREFS

Cf. A062190.

Sequence in context: A052460 A128799 A160287 this_sequence A086027 A110929 A101929

Adjacent sequences: A104669 A104670 A104671 this_sequence A104673 A104674 A104675

KEYWORD

easy,nonn

AUTHOR

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

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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