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.

A215955 Number of horizontal, vertical and diagonal neighbor colorings of the even squares of an n X 4 array with new integer colors introduced in row major order.

Table of values

n a(n)
1 1
2 4
3 29
4 313
5 6150
6 145563
7 5219070
8 208181894
9 11412814314
10 670592486703
11 51088102234508
12 4085932956830052
13 407520605922011467
14 42123055901071684382
15 5279748839226156263229
16 679936583636831702045901

List of values

[1, 4, 29, 313, 6150, 145563, 5219070, 208181894, 11412814314, 670592486703, 51088102234508, 4085932956830052, 407520605922011467, 42123055901071684382, 5279748839226156263229, 679936583636831702045901]