This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A193666 #34 May 04 2024 14:55:11 %S A193666 1,2,8,13,21,55,144,610,2584,10946,46368,75025,121393,317811,514229, %T A193666 1346269,2178309,5702887,9227465,14930352,63245986,267914296, %U A193666 1134903170,4807526976,20365011074,86267571272,365435296162,1548008755920,6557470319842,27777890035288 %N 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). %e A193666 Taking (F(2)=) 1 odd Fib. number gives a(1)=1. %e A193666 Then taking F(3)=2 even Fib. numbers starting with 2 gives a(2)=2, a(3)=8. %e A193666 Then taking F(4)=3 odd Fib. numbers starting with 13 gives a(4)=13, a(5)=21, a(6)=55. %e A193666 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... %Y A193666 Cf. A000045, A001614, A014437, A014445. %K A193666 nonn %O A193666 1,2 %A A193666 _Ctibor O. Zizka_, Aug 08 2011