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.

A050974 Number of binary arrangements on n X n array without three adjacent 1's in a row or column.

Table of values

n a(n)
0 1
1 2
2 16
3 265
4 16561
5 3157010
6 1828904402
7 3323590649777
8 18691199385898465
9 325778072452564800064
10 17617718915229579206450786
11 2954164381835835259001326344913
12 1536134628973698280539373190731911729
13 2477137610106747308204461168746042225266836
14 12387488188151269567355592399321080831513078632498
15 192102098800681202990688566451981906679020804069237862571
16 9238409697848267958752630399467598421213391733838644131510525089

List of values

[1, 2, 16, 265, 16561, 3157010, 1828904402, 3323590649777, 18691199385898465, 325778072452564800064, 17617718915229579206450786, 2954164381835835259001326344913, 1536134628973698280539373190731911729, 2477137610106747308204461168746042225266836, 12387488188151269567355592399321080831513078632498, 192102098800681202990688566451981906679020804069237862571, 9238409697848267958752630399467598421213391733838644131510525089]

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

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