A027106 a(n) = Sum_{k=0..2n} (k+1) * A027082(n, k).

1, 6, 28, 114, 422, 1498, 5146, 17282, 57088, 186234, 601618, 1928314, 6141164, 19453974, 61349680, 192729074, 603449486, 1883989018, 5866941586, 18229205738, 56526585004, 174967361838, 540701808500, 1668482208274

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Crossrefs

Sequence in context: A098470 A253068 A055220 * A309717 A089096 A229587

Adjacent sequences: A027103 A027104 A027105 * A027107 A027108 A027109

Keyword

nonn

Author

Clark Kimberling

Status

approved