A132368 a(0), ..., a(7) are 0,1,2,3,6,4,5,7; for n >= 8, a(n) = a(n-8) + 8.

0, 1, 2, 3, 6, 4, 5, 7, 8, 9, 10, 11, 14, 12, 13, 15, 16, 17, 18, 19, 22, 20, 21, 23, 24, 25, 26, 27, 30, 28, 29, 31, 32, 33, 34, 35, 38, 36, 37, 39, 40, 41, 42, 43, 46, 44, 45, 47, 48, 49, 50, 51, 54, 52, 53, 55, 56, 57, 58, 59, 62, 60, 61, 63, 64, 65, 66, 67, 70, 68, 69, 71, 72

Offset

0,3

Links

Table of n, a(n) for n=0..72.

Formula

a(n)=a(n-1)+a(n-8)-a(n-9). O.g.f.: x*(1+x+x^2+3*x^3-2*x^4+x^5+2*x^6+x^7)/((1+x)*(x^2+1)*(x^4+1)*(x-1)^2). [From R. J. Mathar, Jul 22 2009]

Crossrefs

Sequence in context: A111804 A246835 A213625 * A157248 A368229 A085515

Adjacent sequences: A132365 A132366 A132367 * A132369 A132370 A132371

Keyword

nonn

Author

Paul Curtz, Nov 09 2007

Extensions

Edited by N. J. A. Sloane, Nov 18 2007

Status

approved