0,2

Partial sums are A097168.

G.f. : (1-7x)/((1-9x)(1-10x)); a(n)=19a(n-1)-90a(n-2).

Sequence in context: A030023 A000467 A059517 this_sequence A125469 A113366 A003379

Adjacent sequences: A097164 A097165 A097166 this_sequence A097168 A097169 A097170

easy,nonn

Paul Barry (pbarry(AT)wit.ie), Jul 30 2004