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.

A208121 Number of 6 X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.

Table of values

n a(n)
1 16
2 256
3 784
4 2401
5 17689
6 130321
7 577600
8 2560000
9 15054400
10 88529281
11 443060401
12 2217373921
13 12151975696
14 66597028096
15 346652467984
16 1804403844961
17 9669593502409
18 51818243883121
19 273150984198400
20 1439868559360000

List of values

[16, 256, 784, 2401, 17689, 130321, 577600, 2560000, 15054400, 88529281, 443060401, 2217373921, 12151975696, 66597028096, 346652467984, 1804403844961, 9669593502409, 51818243883121, 273150984198400, 1439868559360000]

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

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