A026307 a(n) = T(n,[ n/2 ]), where T is the array in A026300.

1, 1, 2, 3, 9, 14, 44, 70, 230, 369, 1242, 2002, 6853, 11076, 38376, 62127, 217242, 352070, 1239980, 2010998, 7123765, 11559030, 41141916, 66780155, 238637282, 387444085, 1389206210, 2255875650, 8112107475, 13174629240, 47495492400

Offset

0,3

Links

Table of n, a(n) for n=0..30.

Crossrefs

Cf. A026300.

Sequence in context: A222658 A227212 A237254 * A139816 A368567 A083303

Adjacent sequences: A026304 A026305 A026306 * A026308 A026309 A026310

Keyword

nonn

Author

Clark Kimberling

Extensions

The last term was obviously incorrect and has now been deleted. - N. J. A. Sloane, Oct 29 2006

Status

approved