A027236 a(n) = Sum_{k=0..n} (k+1) * A026758(n, n-k).

1, 3, 8, 23, 55, 149, 339, 889, 1966, 5059, 10985, 27939, 59898, 151210, 321155, 806806, 1701347, 4260511, 8933737, 22325426, 46600476, 116300505, 241846731, 603086027, 1250175771, 3116094702, 6442311137, 16054097455, 33114584924

Offset

0,2

Links

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

Crossrefs

Sequence in context: A068602 A255834 A027212 * A353169 A027244 A108457

Adjacent sequences: A027233 A027234 A027235 * A027237 A027238 A027239

Keyword

nonn

Author

Clark Kimberling

Status

approved