A132167 Row sums of triangle A132166 (s1(7)).

1, 22, 379, 5713, 80032, 1080325, 14354557, 189853438, 2511177679, 33258000301, 440953665088, 5849978617585, 77627638378537, 1030136054227366, 13669717178313811, 181387989640645081, 2406840013228174816

Offset

1,2

Links

Table of n, a(n) for n=1..17.

Formula

a(n)=sum(A132166(n,m),m=1..n), n>=1.

O.g.f.: g1(7, x)/(1-g1(7, x)) with g1(7, x)=(1-(1-6*x)^6)/(36*(1-6*x)^6), o.g.f. first column of A132166.

Crossrefs

Cf. A132168 (alternating row sums of A132166).

Sequence in context: A167120 A167121 A167122 * A167033 A222886 A264464

Adjacent sequences: A132164 A132165 A132166 * A132168 A132169 A132170

Keyword

nonn,easy

Author

Wolfdieter Lang Oct 12 2007

Status

approved