0,2

a(n)=((1+sqrt(2))(n+sqrt(2))^n-(1-sqrt(2))(n-sqrt(2))^n)/sqrt(8).

Cf. A000169.

Sequence in context: A000698 A092881 A004123 this_sequence A005365 A059104 A094071

Adjacent sequences: A086349 A086350 A086351 this_sequence A086353 A086354 A086355

easy,nonn

Paul Barry (pbarry(AT)wit.ie), Jul 18 2003