1,2
a(n)=a(n-5)+7. O.g.f.: x^2*(2+x+2*x^2+x^3+x^4)/((-1+x)^2*(x^4+x^3+x^2+x+1)). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 19 2008
Sequence in context: A120514 A101886 A135674 this_sequence A097432 A038161 A158746
Adjacent sequences: A047329 A047330 A047331 this_sequence A047333 A047334 A047335
nonn
N. J. A. Sloane (njas(AT)research.att.com).
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