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.

A208775 Number of n-bead necklaces labeled with numbers 1..6 not allowing reversal, with no adjacent beads differing by more than 1.

Table of values

n a(n)
1 6
2 11
3 16
4 30
5 52
6 117
7 242
8 577
9 1360
10 3347
11 8278
12 20978
13 53346
14 137422
15 355978
16 928731
17 2434580
18 6414014
19 16961468
20 45017417
21 119840582
22 319916277
23 856089572
24 2295950281
25 6169664562
26 16608996492
27 44785220118
28 120942143132
29 327053057574
30 885545659155
31 2400570958904
32 6514679288762
33 17697582670400
34 48122529680805

List of values

[6, 11, 16, 30, 52, 117, 242, 577, 1360, 3347, 8278, 20978, 53346, 137422, 355978, 928731, 2434580, 6414014, 16961468, 45017417, 119840582, 319916277, 856089572, 2295950281, 6169664562, 16608996492, 44785220118, 120942143132, 327053057574, 885545659155, 2400570958904, 6514679288762, 17697582670400, 48122529680805]

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

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