165024

Appears in sequences

• Number of (w,x,y,z) with all terms in {0,...,n} and even range.at n=23A212889
• a(n) = 2*a(n-1) + 2*a(n-2) - 4*a(n-3) + a(n-4), where a(0) = 2, a(1) = 4, a(2) = 8, a(3) = 16.at n=15A288176
• Triangle read by rows: T(n,k) is the sum of the lengths of the free polyominoes with n cells and length k, n >= 1, k >= 1.at n=71A379638