76816

Appears in sequences

• T(n,0) + T(n,1) + ... + T(n,n), T given by A026648.at n=15A026655
• a(n) = 4*a(n-1) + 2*a(n-2) for n>1, a(0)=1, a(1)=2.at n=8A084059
• Triangular array read by rows: T(n,1) = T(n,n) = 1, T(n,k) = 4*T(n-1, k-1) + 2*T(n-1, k).at n=40A119726