1,2

a(n)= (1/9)*{13*(n mod 6)+[(n+1) mod 6]+[(n+2) mod 6]+[(n+3) mod 6]+[(n+4) mod 6]-2*[(n+5) mod 6]} + 8*A054895, with n>=0. - Paolo P. Lava (ppl(AT)spl.at), Nov 05 2007

Sequence in context: A125684 A089358 A001272 this_sequence A120561 A051016 A044951

Adjacent sequences: A047560 A047561 A047562 this_sequence A047564 A047565 A047566

nonn

N. J. A. Sloane (njas(AT)research.att.com).