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.

A242502 Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 4.

Table of values

n a(n)
4 1
5 0
6 4
7 6
8 10
9 36
10 48
11 126
12 259
13 456
14 1064
15 1956
16 3939
17 8112
18 15300
19 31174
20 60951
21 118580
22 236456
23 458172
24 900185
25 1765556
26 3431792
27 6728410
28 13107393
29 25538448
30 49856392
31 96966572
32 188914574
33 367741688
34 715053048
35 1391512424
36 2705016795
37 5258241032

List of values

[1, 0, 4, 6, 10, 36, 48, 126, 259, 456, 1064, 1956, 3939, 8112, 15300, 31174, 60951, 118580, 236456, 458172, 900185, 1765556, 3431792, 6728410, 13107393, 25538448, 49856392, 96966572, 188914574, 367741688, 715053048, 1391512424, 2705016795, 5258241032]

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

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