0,3

A Thue-Morse convolution.

a(n)=sum{k=0..n, A010060(n-k)3^k}.

Sequence in context: A052643 A140123 A076124 this_sequence A033130 A099098 A019481

Adjacent sequences: A101552 A101553 A101554 this_sequence A101556 A101557 A101558

easy,nonn

Paul Barry (pbarry(AT)wit.ie), Dec 06 2004