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.

A060522 Number of 4 X n grids of black and white cells, no 3 of same color vertically or horizontally contiguous.

Table of values

n a(n)
1 10
2 100
3 378
4 2030
5 9484
6 46746
7 225654
8 1098136
9 5327258
10 25875154
11 125619088
12 609970274
13 2961628194
14 14380186660
15 69822244298
16 339019686614
17 1646096608476
18 7992561729954
19 38807580840854
20 188428757462264
21 914908750899146
22 4442305123352810
23 21569445781449640

List of values

[10, 100, 378, 2030, 9484, 46746, 225654, 1098136, 5327258, 25875154, 125619088, 609970274, 2961628194, 14380186660, 69822244298, 339019686614, 1646096608476, 7992561729954, 38807580840854, 188428757462264, 914908750899146, 4442305123352810, 21569445781449640]

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

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