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.

A202406 T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 010 in rows and columns.

Table of values

n a(n)
1 126
2 441
3 441
4 1785
5 2401
6 1785
7 7225
8 14161
9 14161
10 7225
11 27880
12 83521
13 127449
14 83521
15 27880
16 107584
17 485809
18 1147041
19 1147041
20 485809
21 107584
22 422136
23 2825761
24 9967797
25 15752961
26 9967797
27 2825761
28 422136
29 1656369
30 16475481
31 86620249

List of values

[126, 441, 441, 1785, 2401, 1785, 7225, 14161, 14161, 7225, 27880, 83521, 127449, 83521, 27880, 107584, 485809, 1147041, 1147041, 485809, 107584, 422136, 2825761, 9967797, 15752961, 9967797, 2825761, 422136, 1656369, 16475481, 86620249]

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

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