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.

A204627 Number of (n+1)X6 0..2 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..2 introduced in row major order.

Table of values

n a(n)
1 49152
2 19923888
3 8077061502
4 3274427479938
5 1327448018292252
6 538145459458960020
7 218163372078770313246
8 88443107870080810695504
9 35854704917808122995732308
10 14535444261320212706089532832

List of values

[49152, 19923888, 8077061502, 3274427479938, 1327448018292252, 538145459458960020, 218163372078770313246, 88443107870080810695504, 35854704917808122995732308, 14535444261320212706089532832]

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

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