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.

A223481 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 or antidiagonal neighbor moves across an icosahedral edge.

Table of values

n a(n)
1 400
2 243
3 2025
4 16875
5 147825
6 1296675
7 11374425
8 99776475
9 875239425
10 7677601875
11 67347938025
12 590776238475
13 5182290270225
14 45459059955075
15 398766959055225
16 3497984511586875
17 30684326686171425
18 269162971152369075

List of values

[400, 243, 2025, 16875, 147825, 1296675, 11374425, 99776475, 875239425, 7677601875, 67347938025, 590776238475, 5182290270225, 45459059955075, 398766959055225, 3497984511586875, 30684326686171425, 269162971152369075]