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.

A342333 Number of compositions of n with all adjacent parts (x, y) satisfying x >= 2y or y >= 2x.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 4
5 5
6 10
7 18
8 26
9 42
10 72
11 114
12 184
13 305
14 494
15 799
16 1305
17 2123
18 3446
19 5611
20 9134
21 14851
22 24162
23 39314
24 63945
25 104025
26 169238
27 275305
28 447863
29 728592
30 1185248
31 1928143
32 3136706
33 5102743
34 8301086
35 13504175
36 21968436
37 35737995
38 58138282
39 94578751
40 153859673

List of values

[1, 1, 1, 3, 4, 5, 10, 18, 26, 42, 72, 114, 184, 305, 494, 799, 1305, 2123, 3446, 5611, 9134, 14851, 24162, 39314, 63945, 104025, 169238, 275305, 447863, 728592, 1185248, 1928143, 3136706, 5102743, 8301086, 13504175, 21968436, 35737995, 58138282, 94578751, 153859673]

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

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