A027243 a(n) = Sum_{k=0..n} (k+1) * A026769(n, k).

1, 3, 8, 22, 55, 143, 349, 885, 2138, 5356, 12890, 32092, 77178, 191530, 460934, 1141888, 2751551, 6809421, 16431189, 40633227, 98175341, 242626935, 586867463, 1449457735, 3509084995, 8661201115, 20982916461, 51755457003

Offset

0,2

Links

Table of n, a(n) for n=0..27.

Crossrefs

Sequence in context: A036882 A374773 A020962 * A110239 A271893 A001853

Adjacent sequences: A027240 A027241 A027242 * A027244 A027245 A027246

Keyword

nonn

Author

Clark Kimberling

Status

approved