0,2

G.f.: (1+x^2-2*x^3+2*x^4-x^5+x^6-2*x^7+2*x^8-4*x^9+4*x^10-2*x^11+x^12)/(1-3*x^3)/(1-x)^2. - Vladeta Jovovic (vladeta(AT)Eunet.yu), Mar 23 2003

Cf. A000792.

Sequence in context: A036439 A035298 A000070 this_sequence A100823 A102346 A018147

Adjacent sequences: A008606 A008607 A008608 this_sequence A008610 A008611 A008612

easy,nonn

Mark Herbster (mark(AT)cse.ucsc.edu)