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.

A333149 Number of strict compositions of n that are neither increasing nor decreasing.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 4
7 4
8 8
9 12
10 38
11 42
12 72
13 98
14 150
15 298
16 372
17 542
18 760
19 1070
20 1428
21 2600
22 3120
23 4550
24 6050
25 8478
26 10976
27 15220
28 23872
29 29950
30 41276
31 55062
32 74096
33 97148
34 129786
35 167256
36 256070
37 314454
38 429338
39 556364
40 749266
41 955746
42 1275016
43 1618054

List of values

[0, 0, 0, 0, 0, 0, 4, 4, 8, 12, 38, 42, 72, 98, 150, 298, 372, 542, 760, 1070, 1428, 2600, 3120, 4550, 6050, 8478, 10976, 15220, 23872, 29950, 41276, 55062, 74096, 97148, 129786, 167256, 256070, 314454, 429338, 556364, 749266, 955746, 1275016, 1618054]

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

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