20365011073
domain: N
Appears in sequences
- a(n) = Fibonacci(2*n + 1) - 1.at n=25A027941
- Odd terms in A027941.at n=8A076684
- a(n) = Fibonacci(4n+3) - 1, or Fibonacci(2n+2)*Lucas(2n+1).at n=12A081009
- a(n) = Fibonacci(n)*Lucas(n-1).at n=26A128534
- a(2n) = A000045(6n) + 1, a(2n+1) = A000045(6n+3) - 1.at n=17A140413
- 0-sequence of reduction of Lucas sequence by x^2 -> x+1.at n=25A192243
- Number of vertices of type B at level n of the hyperbolic Pascal pyramid PP_(4,5).at n=27A293064