A193666 F(2) odd Fib. numbers, F(3) even Fib. numbers, F(4) odd Fib. numbers..., F(n) = A000045(n), a(n) < a(n+1).

1, 2, 8, 13, 21, 55, 144, 610, 2584, 10946, 46368, 75025, 121393, 317811, 514229, 1346269, 2178309, 5702887, 9227465, 14930352, 63245986, 267914296, 1134903170, 4807526976, 20365011074, 86267571272, 365435296162, 1548008755920, 6557470319842, 27777890035288

Offset

1,2

Links

Table of n, a(n) for n=1..30.

Example

Taking (F(2)=) 1 odd Fib. number gives a(1)=1.
Then taking F(3)=2 even Fib. numbers starting with 2 gives a(2)=2, a(3)=8.
Then taking F(4)=3 odd Fib. numbers starting with 13 gives a(4)=13, a(5)=21, a(6)=55.
Then taking F(5)=5 even Fib. numbers starting with 144 gives a(7)=144, a(8)=610, a(9)=2584, a(10)=10946, a(11)=46368, etc...

Crossrefs

Cf. A000045, A001614, A014437, A014445.

Sequence in context: A096274 A305879 A271383 * A196024 A371381 A037382

Adjacent sequences: A193663 A193664 A193665 * A193667 A193668 A193669

Keyword

nonn

Author

Ctibor O. Zizka, Aug 08 2011

Status

approved