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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.

A293823 Number of integer-sided hexagons having perimeter n, modulo rotations but not reflections.

Table of values

n a(n)
6 1
7 1
8 4
9 10
10 21
11 41
12 74
13 126
14 196
15 314
16 448
17 672
18 912
19 1302
20 1692
21 2334
22 2937
23 3927
24 4828
25 6292
26 7579
27 9679
28 11466
29 14378
30 16808
31 20748
32 23968
33 29198
34 33388
35 40188
36 45564
37 54264
38 61047
39 72033
40 80484
41 94164
42 104587
43 121429
44 134134
45 154672
46 170016
47 194810
48 213200
49 242880
50 264730
51 300002

List of values

[1, 1, 4, 10, 21, 41, 74, 126, 196, 314, 448, 672, 912, 1302, 1692, 2334, 2937, 3927, 4828, 6292, 7579, 9679, 11466, 14378, 16808, 20748, 23968, 29198, 33388, 40188, 45564, 54264, 61047, 72033, 80484, 94164, 104587, 121429, 134134, 154672, 170016, 194810, 213200, 242880, 264730, 300002]

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

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