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.

A233163 Number of n X 3 0..7 arrays with no element x(i,j) adjacent to itself or value 7-x(i,j) horizontally, diagonally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 4 5 and 6, 2 appearing before 3 4 and 5, and 3 appearing before 4 in row major order (unlabelled 8-colorings with no clashing color pairs).

Table of values

n a(n)
1 3
2 8
3 96
4 1280
5 18432
6 278528
7 4325376
8 68157440
9 1082130432
10 17246978048
11 275414777856
12 4402341478400
13 70403103916032
14 1126174784749568
15 18016597532737536
16 288247968337756160
17 4611826755915743232

List of values

[3, 8, 96, 1280, 18432, 278528, 4325376, 68157440, 1082130432, 17246978048, 275414777856, 4402341478400, 70403103916032, 1126174784749568, 18016597532737536, 288247968337756160, 4611826755915743232]

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

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