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.

A292200 Number of Sommerville symmetrical cyclic compositions (on symmetric necklaces) of n that are Carlitz (adjacent parts on the circle are distinct).

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 3
6 4
7 5
8 7
9 10
10 11
11 16
12 23
13 27
14 37
15 51
16 65
17 86
18 117
19 148
20 204
21 267
22 351
23 461
24 626
25 803
26 1088
27 1419
28 1899
29 2473
30 3341
31 4319
32 5840
33 7583
34 10202
35 13263
36 17889
37 23191
38 31295
39 40627
40 54752
41 71094
42 95878
43 124388
44 167790
45 217781
46 293617
47 381153
48 513989
49 667029
50 899589

List of values

[1, 1, 2, 2, 3, 4, 5, 7, 10, 11, 16, 23, 27, 37, 51, 65, 86, 117, 148, 204, 267, 351, 461, 626, 803, 1088, 1419, 1899, 2473, 3341, 4319, 5840, 7583, 10202, 13263, 17889, 23191, 31295, 40627, 54752, 71094, 95878, 124388, 167790, 217781, 293617, 381153, 513989, 667029, 899589]