The On-Line Encyclopedia of Integer Sequences (OEIS)

A049833 revision #4

A049833

a(n)=T(2n-1,n)+T(2n,n+1)+...+T(3n-3,2n-2)=sum over a period of n-th diagonal of array T given by A049828.

0, 1, 5, 13, 23, 40, 54, 80, 104, 131, 161, 209, 231, 288, 332, 376, 426, 499, 549, 631, 673, 748, 826, 940

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OFFSET

1,3

LINKS

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved