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.

A284869 Number of n-step 2-dimensional closed self-avoiding paths on triangular lattice, reduced for symmetry, i.e., where rotations and reflections are not counted as distinct.

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 1
6 4
7 5
8 16
9 37
10 120
11 344
12 1175
13 3807
14 13224
15 45645
16 161705
17 575325
18 2074088
19 7521818
20 27502445
21 101134999
22 374128188

List of values

[0, 0, 1, 1, 1, 4, 5, 16, 37, 120, 344, 1175, 3807, 13224, 45645, 161705, 575325, 2074088, 7521818, 27502445, 101134999, 374128188]

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

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