25165830

Appears in sequences

• 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=24A146529
• a(n) = 3*a(n-1) - 2*a(n-2), with a(1) = 9, a(2) = 12.at n=23A153973