879609302221
domain: N
Appears in sequences
- a(n) = (1 - (-4)^n)/5.at n=20A014985
- a(n) = 3*a(n-1) + 4*a(n-2), a(0) = 0, a(1) = 1.at n=21A015521
- Record values in A091023.at n=20A091052
- a(n) = a(n-1) + 2^(k(n)), where k(n) is the n-th term of the sequence formed by k(1)=0 together with the numbers A042964.at n=20A113876
- a(n) = 3*a(n-1) + 4*a(n-2) - a(n-3) + 3*a(n-4) + 4*a(n-5).at n=20A135345
- a(n) = (4^(2*n+1) + 1) / 5.at n=10A299960