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.

A223203 Rolling icosahedron face footprints: number of n X n 0..19 arrays starting with 0 where 0..19 label faces of an icosahedron and every array movement to a horizontal or vertical neighbor moves across an icosahedral edge.

Table of values

n a(n)
1 1
2 15
3 657
4 90111
5 39868737
6 57728430255
7 275769851453745
8 4367470887097715487
9 230051556728875753924449
10 40390820217552511124819066703

List of values

[1, 15, 657, 90111, 39868737, 57728430255, 275769851453745, 4367470887097715487, 230051556728875753924449, 40390820217552511124819066703]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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