158062

Appears in sequences

• G.f.: (1+x^2)/((1-2x)(1-x-x^2)); a(n)=3a(n-1)-a(n-2)-2a(n-3); a(n)=5*2^n-L(n+3); a(n)=sum{k=0..n, (L(k)-0^k)2^(n-k)}.at n=15A099166
• Number of nXnXn triangular 0..1 arrays with each element equal to at least one neighbor, containing at least one 1 and with new values 0..1 introduced in row major order.at n=5A192724