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.

A343664 Number of partitions of an n-set without blocks of size 4.

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 14
5 47
6 173
7 702
8 3125
9 14910
10 76495
11 418035
12 2418397
13 14791597
14 95093612
15 641094695
16 4521228732
17 33250447919
18 254585084539
19 2024995604762
20 16702070759557
21 142642458681486
22 1259387604241013
23 11479967000116911
24 107910143688962037
25 1044735841257587203
26 10407104137208385924

List of values

[1, 1, 2, 5, 14, 47, 173, 702, 3125, 14910, 76495, 418035, 2418397, 14791597, 95093612, 641094695, 4521228732, 33250447919, 254585084539, 2024995604762, 16702070759557, 142642458681486, 1259387604241013, 11479967000116911, 107910143688962037, 1044735841257587203, 10407104137208385924]

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

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