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.

A056633 a(n) is the total squared perimeter of all self-avoiding polygons of area n on the square lattice.

Table of values

n a(n)
1 16
2 72
3 384
4 1864
5 8720
6 40064
7 180992
8 805416
9 3542720
10 15437280
11 66739168
12 286614344
13 1223894208
14 5200593136
15 22003683264
16 92745730384
17 389613088944
18 1631810452416
19 6816075114112
20 28401442383848

List of values

[16, 72, 384, 1864, 8720, 40064, 180992, 805416, 3542720, 15437280, 66739168, 286614344, 1223894208, 5200593136, 22003683264, 92745730384, 389613088944, 1631810452416, 6816075114112, 28401442383848]

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

Content is available under The OEIS End-User License Agreement.