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.

A214272 Number of compositions of n where the difference between largest and smallest parts equals 3 and adjacent parts are unequal.

Table of values

n a(n)
4 0
5 2
6 1
7 8
8 12
9 18
10 46
11 69
12 111
13 208
14 340
15 539
16 910
17 1497
18 2403
19 3924
20 6331
21 10230
22 16531
23 26591
24 42652
25 68595
26 110195
27 176458
28 282895
29 452990
30 725036
31 1160067
32 1855376
33 2966265
34 4740385
35 7574822
36 12099506
37 19324253
38 30856321
39 49260709
40 78631609
41 125495919

List of values

[0, 2, 1, 8, 12, 18, 46, 69, 111, 208, 340, 539, 910, 1497, 2403, 3924, 6331, 10230, 16531, 26591, 42652, 68595, 110195, 176458, 282895, 452990, 725036, 1160067, 1855376, 2966265, 4740385, 7574822, 12099506, 19324253, 30856321, 49260709, 78631609, 125495919]

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

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