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.

A274893 Number of nX6 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2.

Table of values

n a(n)
1 16
2 324
3 200
4 815
5 3064
6 12217
7 48269
8 191974
9 767905
10 3065418
11 12266783
12 49117667
13 196547638
14 787292648
15 3152652324
16 12625267314
17 50570833189
18 202532990424
19 811204807382
20 3249164512849
21 13013594658959
22 52124256901705

List of values

[16, 324, 200, 815, 3064, 12217, 48269, 191974, 767905, 3065418, 12266783, 49117667, 196547638, 787292648, 3152652324, 12625267314, 50570833189, 202532990424, 811204807382, 3249164512849, 13013594658959, 52124256901705]

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

Content is available under The OEIS End-User License Agreement.