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.

A011953 Number of Barlow packings with group P3m1 that repeat after n layers.

Table of values

n a(n)
9 3
10 2
11 10
12 15
13 42
14 68
15 162
16 280
17 600
18 1088
19 2214
20 4112
21 8154
22 15366
23 30052
24 57208
25 111166
26 212982
27 412890
28 794688
29 1540002
30 2974150
31 5767344
32 11167872
33 21680832
34 42073640
35 81787057
36 159005154
37 309503502
38 602667098

List of values

[3, 2, 10, 15, 42, 68, 162, 280, 600, 1088, 2214, 4112, 8154, 15366, 30052, 57208, 111166, 212982, 412890, 794688, 1540002, 2974150, 5767344, 11167872, 21680832, 42073640, 81787057, 159005154, 309503502, 602667098]

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

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