A173696 a(n) = ceiling(A117791(n)/2).

1, 1, 1, 2, 2, 3, 5, 7, 10, 15, 23, 34, 51, 77, 115, 173, 259, 389, 584, 877, 1317, 1978, 2970, 4459, 6696, 10054, 15097, 22670, 34041, 51115, 76754, 115254, 173064, 259872, 390223, 585956, 879869, 1321206, 1983916, 2979038, 4473308, 6717096, 10086357, 15145621, 22742585, 34150148, 51279684, 77001307

Offset

0,4

Links

G. C. Greubel, Table of n, a(n) for n = 0..1000

Formula

a(n) = A117791(n) - floor(A117791(n)/2) = ceiling(A117791(n)/2).

Mathematica

Ceiling[CoefficientList[Series[1/(1 - x - x^2 + x^4 - x^6), {x, 0, 50}], x]/2] (* G. C. Greubel, Nov 16 2016 *)

Crossrefs

Cf. A117791.

Sequence in context: A058278 A097333 A001083 * A120412 A022864 A316075

Adjacent sequences: A173693 A173694 A173695 * A173697 A173698 A173699

Keyword

nonn,easy,less

Author

Roger L. Bagula, Nov 25 2010

Extensions

Erroneous leading zeros deleted by Joerg Arndt, Nov 17 2016

Sequence values corrected by G. C. Greubel, Nov 19 2016

Status

approved