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.

A276251 Number of 5Xn 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-2) and new values introduced in order 0..2.

Table of values

n a(n)
1 41
2 576
3 1404
4 7316
5 43662
6 234431
7 1423062
8 8496628
9 48688320
10 288603590
11 1711519279
12 9976564722
13 58701625833
14 346524625690
15 2030788320548
16 11939927515262
17 70303418241786
18 412977048554900
19 2427488189698431

List of values

[41, 576, 1404, 7316, 43662, 234431, 1423062, 8496628, 48688320, 288603590, 1711519279, 9976564722, 58701625833, 346524625690, 2030788320548, 11939927515262, 70303418241786, 412977048554900, 2427488189698431]

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

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