A052805 - cp's OEIS frontend

A052805 If B is a collection in which there are C(n-1) [Catalan numbers, A000108] things with n points, a(n) is the number of subsets without repetition of B with a total of n points.

n	a(n)
0	1
1	1
2	1
3	3
4	7
5	21
6	64
7	204
8	666
9	2236
10	7625
11	26419
12	92644
13	328370
14	1174234
15	4231898
16	15354424
17	56042372
18	205626906
19	758021598
20	2806143522
21	10427671924
22	38882984840
23	145443260702
24	545598228056
25	2052086677666
26	7736986142773
27	29236241424977

[1, 1, 1, 3, 7, 21, 64, 204, 666, 2236, 7625, 26419, 92644, 328370, 1174234, 4231898, 15354424, 56042372, 205626906, 758021598, 2806143522, 10427671924, 38882984840, 145443260702, 545598228056, 2052086677666, 7736986142773, 29236241424977]

cp's OEIS Frontend

A052805 If B is a collection in which there are C(n-1) [Catalan numbers, A000108] things with n points, a(n) is the number of subsets without repetition of B with a total of n points.

Table of values

List of values