49158

Appears in sequences

• Number of centered 5-valent trees with n nodes.at n=18A036648
• A two level sequence: v(n)=2*(If[n == 0, 0, 2^(n - 1)] + 2); a(n)=If[n == 0, 6, (v[n] + v[n - 1] - 2)].at n=15A146529
• a(n) = 3*a(n-1) - 2*a(n-2), with a(1) = 9, a(2) = 12.at n=14A153973
• 1/4 the number of (n+1) X 6 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.at n=29A209724
• Number of zygodrome numbers in base-10 (A033023) with n or fewer digits.at n=8A374749