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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.

A325591 Number of compositions of n with circular differences all equal to 1, 0, or -1.

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 11
6 15
7 27
8 43
9 68
10 116
11 189
12 311
13 519
14 860
15 1433
16 2380
17 3968
18 6613
19 11018
20 18374
21 30633
22 51089
23 85208
24 142113
25 237055
26 395409
27 659576
28 1100262
29 1835382
30 3061711
31 5107445
32 8520122
33 14213135
34 23710173
35 39553138
36 65982316
37 110071459
38 183620990
39 306316328

List of values

[1, 2, 4, 6, 11, 15, 27, 43, 68, 116, 189, 311, 519, 860, 1433, 2380, 3968, 6613, 11018, 18374, 30633, 51089, 85208, 142113, 237055, 395409, 659576, 1100262, 1835382, 3061711, 5107445, 8520122, 14213135, 23710173, 39553138, 65982316, 110071459, 183620990, 306316328]

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

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