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.

A203377 Number of (n+1)X8 0..1 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.

Table of values

n a(n)
1 8748
2 323852
3 12301020
4 471988172
5 18189909480
6 702420750924
7 27149753088792
8 1049837466171436
9 40603753889665632
10 1570549319417597656
11 60751409051086135560
12 2350012855527394133452
13 90905131505907584858388

List of values

[8748, 323852, 12301020, 471988172, 18189909480, 702420750924, 27149753088792, 1049837466171436, 40603753889665632, 1570549319417597656, 60751409051086135560, 2350012855527394133452, 90905131505907584858388]

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

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