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.

A342335 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 3
5 3
6 7
7 9
8 9
9 16
10 21
11 22
12 36
13 47
14 51
15 77
16 101
17 114
18 165
19 217
20 251
21 350
22 459
23 540
24 733
25 962
26 1152
27 1535
28 2010
29 2437
30 3207
31 4192
32 5141
33 6698
34 8728
35 10802
36 13979
37 18170
38 22652
39 29169
40 37814
41 47410
42 60854
43 78716
44 99144
45 126974
46 163897
47 207159
48 264918
49 341331
50 432606
51 552693
52 711013
53 903041
54 1153060

List of values

[1, 1, 1, 3, 3, 3, 7, 9, 9, 16, 21, 22, 36, 47, 51, 77, 101, 114, 165, 217, 251, 350, 459, 540, 733, 962, 1152, 1535, 2010, 2437, 3207, 4192, 5141, 6698, 8728, 10802, 13979, 18170, 22652, 29169, 37814, 47410, 60854, 78716, 99144, 126974, 163897, 207159, 264918, 341331, 432606, 552693, 711013, 903041, 1153060]

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

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