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 A006502 M2970 #31 Jul 08 2025 16:48:31 %S A006502 1,3,14,60,279,1251,5329,21532,83225,310464,1126502,4000602,13973725, %T A006502 48187521,164535708,557528652,1878067349,6297614277,21043287325, %U A006502 70125062642,233198372319,774246922848,2567419361916,8505547438596,28157369861593,93162331494255,308108749498202 %N A006502 Related to Fibonacci numbers. %D A006502 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A006502 L. Carlitz, <a href="/A006502/a006502.pdf">Some polynomials related to Fibonacci and Eulerian numbers</a>, Fib. Quart., 16 (1978), 217. (Annotated scanned copy) %H A006502 L. Carlitz, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Scanned/16-3/carlitz1.pdf">Some polynomials related to Fibonacci and Eulerian numbers</a>, Fib. Quart., 16 (1978), 216-226. %F A006502 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 %Y A006502 A diagonal of triangle in A259708. %K A006502 nonn %O A006502 0,2 %A A006502 _N. J. A. Sloane_ %E A006502 More terms from _Michel Marcus_, Feb 26 2016