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 A375865 #15 Sep 14 2024 06:46:43 %S A375865 1,4,16,64,241,920,3384,12585,46471,172226,633138,2333757,8561679, %T A375865 31462176,115247629,422677188,1546186675,5661378449,20689242550, %U A375865 75663420126,276279455583,1009416896015,3683274847187,13446591920995,49037278586475,178904588083788,652111697384508,2377810831870022 %N A375865 Number of shapes of a Rubik's Snake with n wedges. %H A375865 Peter Aylett, <a href="https://blog.ylett.com/2011/09/rubiks-snake-combinations.html">Rubik's Snake Combinations</a>. %H A375865 Dmytro Fedoriaka, <a href="https://github.com/fedimser/math/blob/master/rubiks-snake/count-shapes.ipynb">Counting Rubik's Snake Shapes</a>. %H A375865 Wikipedia, <a href="https://en.wikipedia.org/wiki/Rubik%27s_Snake">Rubik's Snake</a>. %K A375865 nonn %O A375865 1,2 %A A375865 _Dmytro Fedoriaka_, Aug 31 2024