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.

A222912 Number of 7Xn 0..3 arrays with no more than floor(7Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.

Table of values

n a(n)
1 715
2 15919
3 759891
4 105327353
5 4854855483
6 997770825049
7 51666240687220
8 11720702848290810
9 667162032011395790
10 166939045536469920335

List of values

[715, 15919, 759891, 105327353, 4854855483, 997770825049, 51666240687220, 11720702848290810, 667162032011395790, 166939045536469920335]

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

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