A050195 a(n)=a(n-1)+a(n-2)-d, where d=a(n/5) if 5 divides n, else d=0; 2 initial terms.

1, 1, 2, 3, 4, 7, 11, 18, 29, 46, 75, 121, 196, 317, 511, 828, 1339, 2167, 3506, 5670, 9176, 14846, 24022, 38868, 62886, 101754, 164640, 266394, 431034, 697421, 1128455, 1825876, 2954331, 4780207, 7734527, 12514734, 20249261

Offset

1,3

Links

Table of n, a(n) for n=1..37.

Crossrefs

Sequence in context: A119015 A222329 A018145 * A293638 A222330 A222331

Adjacent sequences: A050192 A050193 A050194 * A050196 A050197 A050198

Keyword

nonn

Author

Clark Kimberling

Status

approved