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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.

A103471 Number of polyominoes consisting of 5 regular unit n-gons.

Table of values

n a(n)
3 4
4 12
5 25
6 22
7 25
8 50
9 82
10 127
11 186
12 168
13 187
14 263
15 362
16 472
17 614
18 566
19 615
20 776
21 972
22 1179
23 1437
24 1347
25 1439
26 1711
27 2045
28 2376
29 2786
30 2641
31 2790
32 3204
33 3707
34 4193
35 4790
36 4575
37 4796
38 5380
39 6089
40 6760
41 7578
42 7282
43 7584
44 8373
45 9321
46 10207
47 11282
48 10890

List of values

[4, 12, 25, 22, 25, 50, 82, 127, 186, 168, 187, 263, 362, 472, 614, 566, 615, 776, 972, 1179, 1437, 1347, 1439, 1711, 2045, 2376, 2786, 2641, 2790, 3204, 3707, 4193, 4790, 4575, 4796, 5380, 6089, 6760, 7578, 7282, 7584, 8373, 9321, 10207, 11282, 10890]

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

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