A115275 - cp's OEIS frontend

A115275 Number of partitions of {1,...,n} into blocks such that no block size is repeated more than 3 times.

n	a(n)
0	1
1	1
2	2
3	5
4	14
5	51
6	187
7	820
8	3670
9	18191
10	97917
11	554500
12	3334465
13	20871592
14	138440031
15	972083845
16	6985171390
17	52194795327
18	412903730293
19	3313067916192
20	28017395030419
21	241504438776956
22	2189375704925081
23	19771679215526507
24	187677937412341677

[1, 1, 2, 5, 14, 51, 187, 820, 3670, 18191, 97917, 554500, 3334465, 20871592, 138440031, 972083845, 6985171390, 52194795327, 412903730293, 3313067916192, 28017395030419, 241504438776956, 2189375704925081, 19771679215526507, 187677937412341677]

cp's OEIS Frontend

A115275 Number of partitions of {1,...,n} into blocks such that no block size is repeated more than 3 times.

Table of values

List of values