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A144281 Row sums of triangle A144280 (called S2hat(-3)). 1
1, 4, 25, 265, 3793, 70789, 1600429, 42811078, 1316981794, 45858363502, 1781106761686, 76349861206627, 3579325969675135, 182170488961796899, 10002072131444031160, 589261706147357617009, 37076870479319887575253, 2481442922857293505594237 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

FORMULA

a(n)=sum(A144280(n,m),m=1..n), n>=1.

CROSSREFS

Sequence in context: A071896 A065740 A308008 * A320569 A058791 A216660

Adjacent sequences:  A144278 A144279 A144280 * A144282 A144283 A144284

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang Oct 09 2008

STATUS

approved

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Last modified January 17 20:36 EST 2020. Contains 330987 sequences. (Running on oeis4.)