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.

A268988 Number of n X n binary arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two not more than once.

Table of values

n a(n)
1 2
2 13
3 174
4 6009
5 421450
6 66954420
7 22995344760
8 17373640598542
9 29082748697180602
10 107300241515211644436
11 883523091936988991189604
12 16140842052133986432421342048
13 659806253617230823177640504040304

List of values

[2, 13, 174, 6009, 421450, 66954420, 22995344760, 17373640598542, 29082748697180602, 107300241515211644436, 883523091936988991189604, 16140842052133986432421342048, 659806253617230823177640504040304]

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

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