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.

A189189 Number of n X n binary arrays without the pattern 0 0 1 vertically or antidiagonally.

Table of values

n a(n)
1 2
2 16
3 316
4 15326
5 1579664
6 367115337
7 184841938568
8 209311662962608
9 525679279319545840
10 2979655033608039508606
11 37875187935027408625277140
12 1087648851912447148168100296827
13 70353152136567154798416885107484140

List of values

[2, 16, 316, 15326, 1579664, 367115337, 184841938568, 209311662962608, 525679279319545840, 2979655033608039508606, 37875187935027408625277140, 1087648851912447148168100296827, 70353152136567154798416885107484140]

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

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