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.

A239557 Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-7,...,7}.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 4
5 8
6 16
7 31
8 61
9 120
10 235
11 460
12 901
13 1769
14 3471
15 6811
16 13367
17 26236
18 51497
19 101079
20 198399
21 389428
22 764384
23 1500372
24 2945008
25 5780612
26 11346484
27 22271478
28 43715623
29 85807323
30 168427136
31 330597667
32 648914509
33 1273723636
34 2500131931
35 4907390780

List of values

[1, 1, 1, 2, 4, 8, 16, 31, 61, 120, 235, 460, 901, 1769, 3471, 6811, 13367, 26236, 51497, 101079, 198399, 389428, 764384, 1500372, 2945008, 5780612, 11346484, 22271478, 43715623, 85807323, 168427136, 330597667, 648914509, 1273723636, 2500131931, 4907390780]