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.

A325473 Number of compositions of n with no part divisible by 3 and an even number of parts congruent to 4 or 5 modulo 6.

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 5
5 8
6 13
7 22
8 38
9 67
10 120
11 217
12 395
13 722
14 1323
15 2428
16 4460
17 8197
18 15070
19 27711
20 50961
21 93724
22 172377
23 317042
24 583122
25 1072519
26 1972660
27 3628277
28 6673431
29 12274342
30 22576023
31 41523768
32 76374104
33 140473865
34 258371706
35 475219643
36 874065181
37 1607656496

List of values

[1, 1, 2, 3, 5, 8, 13, 22, 38, 67, 120, 217, 395, 722, 1323, 2428, 4460, 8197, 15070, 27711, 50961, 93724, 172377, 317042, 583122, 1072519, 1972660, 3628277, 6673431, 12274342, 22576023, 41523768, 76374104, 140473865, 258371706, 475219643, 874065181, 1607656496]

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

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