A026980 - OEIS

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A026980

a(n) = Sum_{k=0..n} (k+1) * A026659(n,k).

1, 3, 8, 25, 60, 147, 336, 882, 1960, 4631, 10104, 25207, 54292, 125895, 268576, 653191, 1383228, 3172981, 6679960, 15996204, 33515856, 76350225, 159339600, 377580850, 785368168, 1780545051, 3692982328, 8684805392, 17968562880

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..28.

CROSSREFS

Sequence in context: A057420 A076049 A026970 * A026955 A093900 A018789

Adjacent sequences: A026977 A026978 A026979 * A026981 A026982 A026983

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved