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Search: id:A132167
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A132167 Row sums of triangle A132166 (s1(7)). +0
3
1, 22, 379, 5713, 80032, 1080325, 14354557, 189853438, 2511177679, 33258000301, 440953665088, 5849978617585, 77627638378537, 1030136054227366, 13669717178313811, 181387989640645081, 2406840013228174816 (list; graph; listen)
OFFSET

1,2

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).

Adjacent sequences: A132164 A132165 A132166 this_sequence A132168 A132169 A132170

Sequence in context: A001718 A081127 A016196 this_sequence A049663 A095219 A014904

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de) Oct 12 2007

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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