0,2

R. K. Guy, personal communication.

Recurrence: a(n) = a(n-1) + a(n-6) for n >= 12.

O.g.f.: -(1+x+x^2+x^3+2*x^4+2*x^5+2*x^6+x^7+x^8+2*x^9+2*x^10+3*x^11)/(-1+x+x^6) . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 05 2007

Cf. A005708.

Sequence in context: A034891 A062464 A053270 this_sequence A038348 A035945 A094707

Adjacent sequences: A003409 A003410 A003411 this_sequence A003413 A003414 A003415

nonn

njas