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.

A181247 Number of n X 4 binary matrices with no 2 X 2 block having four 1's.

Table of values

n a(n)
1 16
2 216
3 3032
4 42176
5 587920
6 8191392
7 114142368
8 1590466304
9 22161786304
10 308805072256
11 4302929532288
12 59957567962112
13 835456401197312
14 11641356029819392
15 162212139560176128
16 2260284639281590272

List of values

[16, 216, 3032, 42176, 587920, 8191392, 114142368, 1590466304, 22161786304, 308805072256, 4302929532288, 59957567962112, 835456401197312, 11641356029819392, 162212139560176128, 2260284639281590272]

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

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