A117722 a(n) = A000045(A003622(n)).

1, 3, 8, 34, 144, 377, 1597, 4181, 17711, 75025, 196418, 832040, 3524578, 9227465, 39088169, 102334155, 433494437, 1836311903, 4807526976, 20365011074, 53316291173, 225851433717, 956722026041, 2504730781961, 10610209857723

Offset: 0

Author

E.J.P. Vening, Apr 13 2006

Keywords

• easy
• less
• nonn

Comments

Old name was: Fibonacci numbers from sequence A000045 aligned with instances of '1' in the Fibonacci word sequence A003849.

Crossrefs

Cf. A000045, A003622, A003849.

Programs

PARI

a(n)=fibonacci((n+1)*(3+sqrt(5))\2-1) \\ Charles R Greathouse IV, Apr 19 2015; shifted by Georg Fischer, Jun 22 2022

Formula

a(n) = A000045( A003622(n) ). - Joerg Arndt, Aug 28 2013

Extensions

More terms from R. J. Mathar, Jan 21 2008

Better name by Joerg Arndt, Aug 28 2013