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.

A141783 Number of bracelets (turn over necklaces) with n beads: 1 blue, 12 green, and r = n - 13 red.

Table of values

n a(n)
13 1
14 7
15 49
16 231
17 924
18 3108
19 9324
20 25236
21 63090
22 147070
23 323554
24 676270
25 1352540
26 2600612
27 4829708
28 8692788
29 15212379
30 25949469
31 43249115
32 70562765
33 112900424
34 177412664
35 274183208
36 417232088
37 625848132
38 926250780
39 1353751140

List of values

[1, 7, 49, 231, 924, 3108, 9324, 25236, 63090, 147070, 323554, 676270, 1352540, 2600612, 4829708, 8692788, 15212379, 25949469, 43249115, 70562765, 112900424, 177412664, 274183208, 417232088, 625848132, 926250780, 1353751140]

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

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