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.

A252074 Number of (n+2)X(7+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 3 or 4.

Table of values

n a(n)
1 3279
2 23091
3 206747
4 1669294
5 13460641
6 110131513
7 896763044
8 7301549024
9 59570598626
10 485457428288
11 3954090473063
12 32222610105491
13 262627685087219
14 2140187356615074
15 17439608164244761
16 142114394703257745

List of values

[3279, 23091, 206747, 1669294, 13460641, 110131513, 896763044, 7301549024, 59570598626, 485457428288, 3954090473063, 32222610105491, 262627685087219, 2140187356615074, 17439608164244761, 142114394703257745]

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

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