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.

A361378 Number of musical scales in n tone equal temperament respecting the property that alternate notes are 3 or 4 semitones apart.

Table of values

n a(n)
1 0
2 1
3 2
4 3
5 3
6 3
7 8
8 8
9 12
10 16
11 25
12 33
13 45
14 66
15 91
16 128
17 177
18 252
19 351
20 491
21 689
22 966
23 1354
24 1894
25 2658
26 3723
27 5217
28 7309
29 10244
30 14355
31 20112
32 28185
33 39494
34 55343
35 77547
36 108667
37 152272
38 213372
39 298992
40 418968
41 587089
42 822665
43 1152777
44 1615350

List of values

[0, 1, 2, 3, 3, 3, 8, 8, 12, 16, 25, 33, 45, 66, 91, 128, 177, 252, 351, 491, 689, 966, 1354, 1894, 2658, 3723, 5217, 7309, 10244, 14355, 20112, 28185, 39494, 55343, 77547, 108667, 152272, 213372, 298992, 418968, 587089, 822665, 1152777, 1615350]

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

Content is available under The OEIS End-User License Agreement.