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.

A189774 Number of n X 4 binary arrays without the pattern 1 0 0 1 diagonally, vertically or horizontally.

Table of values

n a(n)
1 15
2 225
3 3375
4 37976
5 418550
6 4461435
7 48633913
8 530389481
9 5817065520
10 63680392402
11 697353409375
12 7631111846379
13 83521134087527
14 914046929969572
15 10004056595349672
16 109490279695417318
17 1198342710234669673

List of values

[15, 225, 3375, 37976, 418550, 4461435, 48633913, 530389481, 5817065520, 63680392402, 697353409375, 7631111846379, 83521134087527, 914046929969572, 10004056595349672, 109490279695417318, 1198342710234669673]

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

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