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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.

A213249 Triangle T(n,k) of numbers of distinct shapes under rotation of non-extendable (complete) non-self-adjacent simple paths within a square lattice bounded by rectangles with nodal dimensions n and k, n >= k >= 2.

Table of values

n a(n)
2 2
3 8
4 16
5 18
6 64
7 134
8 34
9 170
10 706
11 1854
12 60
13 398
14 2346
15 13198
16 41478
17 102
18 880
19 6832
20 55454
21 382116
22 1424988

List of values

[2, 8, 16, 18, 64, 134, 34, 170, 706, 1854, 60, 398, 2346, 13198, 41478, 102, 880, 6832, 55454, 382116, 1424988]

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

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