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.

A207849 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 1 1 vertically.

Table of values

n a(n)
1 26
2 676
3 2080
4 9672
5 41444
6 181896
7 794768
8 3479268
9 15223104
10 66632488
11 291591092
12 1276262520
13 5585326656
14 24445752916
15 106984774208
16 468241205640
17 2049246237012
18 8968858409576
19 39252328435216
20 171793006303620

List of values

[26, 676, 2080, 9672, 41444, 181896, 794768, 3479268, 15223104, 66632488, 291591092, 1276262520, 5585326656, 24445752916, 106984774208, 468241205640, 2049246237012, 8968858409576, 39252328435216, 171793006303620]

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

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