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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.

A141148 Number of aperiodic ternary necklaces with n beads of each color and no adjacent beads of the same color.

Table of values

n a(n)
1 2
2 3
3 14
4 65
5 346
6 1929
7 11442
8 70310
9 445928
10 2896239
11 19186738
12 129184583
13 881808726
14 6089840427
15 42482905678
16 298976072384
17 2120377458898
18 15141288786096
19 108784152585234
20 785869928763325
21 5705406374237814

List of values

[2, 3, 14, 65, 346, 1929, 11442, 70310, 445928, 2896239, 19186738, 129184583, 881808726, 6089840427, 42482905678, 298976072384, 2120377458898, 15141288786096, 108784152585234, 785869928763325, 5705406374237814]

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

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