0,3

a(n) = 3 a(n-1) + 10 a(n-2).

a(n)=5^n/7-(-2)^n/7. Binomial transform is A015540. - Paul Barry (pbarry(AT)wit.ie), Feb 07 2004

Sequence in context: A099421 A061171 A089621 this_sequence A050863 A049153 A074361

Adjacent sequences: A015525 A015526 A015527 this_sequence A015529 A015530 A015531

nonn,easy

Olivier Gerard (ogerard(AT)ext.jussieu.fr)