3145734

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=21A146529
• a(n) = 3*a(n-1) - 2*a(n-2), with a(1) = 9, a(2) = 12.at n=20A153973
• Products of the Jacobsthal numbers and the integers: a(n) = n * A001045(n+1).at n=18A193449