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.

A337482 Number of compositions of n that are neither strictly increasing nor weakly decreasing.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 2
5 7
6 18
7 45
8 101
9 219
10 461
11 957
12 1957
13 3978
14 8036
15 16182
16 32506
17 65202
18 130642
19 261601
20 523598
21 1047709
22 2096062
23 4192946
24 8386912
25 16775117
26 33551832
27 67105663
28 134213789
29 268430636
30 536865013
31 1073734643
32 2147474910
33 4294956706
34 8589921771

List of values

[0, 0, 0, 0, 2, 7, 18, 45, 101, 219, 461, 957, 1957, 3978, 8036, 16182, 32506, 65202, 130642, 261601, 523598, 1047709, 2096062, 4192946, 8386912, 16775117, 33551832, 67105663, 134213789, 268430636, 536865013, 1073734643, 2147474910, 4294956706, 8589921771]