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A026307 a(n) = T(n,[ n/2 ]), where T is the array in A026300. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

CROSSREFS

Sequence in context: A222658 A227212 A237254 * A139816 A083303 A245594

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

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Last modified April 6 12:19 EDT 2020. Contains 333273 sequences. (Running on oeis4.)