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.

A223284 Rolling icosahedron face footprints: number of 3 X n 0..19 arrays starting with 0 where 0..19 label faces of an icosahedron and every array movement to a horizontal, diagonal or antidiagonal neighbor moves across an icosahedral edge.

Table of values

n a(n)
1 400
2 75
3 849
4 4995
5 38457
6 261819
7 1881441
8 13196979
9 93567177
10 660226923
11 4668616305
12 32981553891
13 233097416793
14 1647108262683
15 11639737522305
16 82252298336787
17 581246168781033
18 4107418513432011
19 29025468445135761

List of values

[400, 75, 849, 4995, 38457, 261819, 1881441, 13196979, 93567177, 660226923, 4668616305, 32981553891, 233097416793, 1647108262683, 11639737522305, 82252298336787, 581246168781033, 4107418513432011, 29025468445135761]