cp's OEIS Frontend

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.

A006502 Related to Fibonacci numbers.

Original entry on oeis.org

1, 3, 14, 60, 279, 1251, 5329, 21532, 83225, 310464, 1126502, 4000602, 13973725, 48187521, 164535708, 557528652, 1878067349, 6297614277, 21043287325, 70125062642, 233198372319, 774246922848, 2567419361916, 8505547438596, 28157369861593, 93162331494255, 308108749498202
Offset: 0

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References

  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Crossrefs

A diagonal of triangle in A259708.

Formula

Conjecture: g.f. ( 1-7*x+18*x^2-10*x^3+5*x^4-15*x^5-39*x^6-20*x^7-3*x^8 ) / ( (x^2+3*x-1) *(x^2+2*x-1)^2 *(x^2+x-1)^3 ). - R. J. Mathar, Jun 18 2019

Extensions

More terms from Michel Marcus, Feb 26 2016