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.

A275137 Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,-2) or (0,-1) and new values introduced in order 0..2.

Table of values

n a(n)
1 1
2 6
3 80
4 1088
5 9744
6 165568
7 4055152
8 147762240
9 7887576208
10 624224888096
11 72861217834416
12 12595738987019680
13 3224446583629649792
14 1224344356792821362688
15 689079095818717776787184

List of values

[1, 6, 80, 1088, 9744, 165568, 4055152, 147762240, 7887576208, 624224888096, 72861217834416, 12595738987019680, 3224446583629649792, 1224344356792821362688, 689079095818717776787184]

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

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