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.

A204710 Number of (n+1) X 6 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.

Table of values

n a(n)
1 97
2 529
3 2689
4 14145
5 73345
6 382849
7 1992321
8 10382977
9 54072961
10 281700993
11 1467309697
12 7643513473
13 39814841985
14 207399103105
15 1080347897473
16 5627597738625
17 29314404685441
18 152700279978625
19 795423120883329

List of values

[97, 529, 2689, 14145, 73345, 382849, 1992321, 10382977, 54072961, 281700993, 1467309697, 7643513473, 39814841985, 207399103105, 1080347897473, 5627597738625, 29314404685441, 152700279978625, 795423120883329]

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

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