A027090 a(n) = A027082(n, 2n-3).

1, 3, 9, 28, 84, 246, 714, 2059, 5917, 16971, 48633, 139333, 399267, 1144669, 3283839, 9427981, 27090715, 77911897, 224272499, 646157234, 1863317958, 5377939756, 15535195892, 44913790501, 129955421387, 376313609029

Offset

2,2

Links

Table of n, a(n) for n=2..27.

Crossrefs

Sequence in context: A184698 A027099 A292328 * A033139 A372870 A291731

Adjacent sequences: A027087 A027088 A027089 * A027091 A027092 A027093

Keyword

nonn

Author

Clark Kimberling

Status

approved