A357285 - cp's OEIS frontend

A357285 a(n) = number of subsets S of {1,2,...,n} having more than 2 elements such that (sum of least three elements of S) < max(S).

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	8
8	32
9	104
10	304
11	792
12	1920
13	4520
14	10192
15	22392
16	48416
17	102856
18	215664
19	448792
20	925632
21	1897064
22	3872016
23	7868344
24	15936096
25	32208136
26	64946096
27	130738776
28	262886656
29	527990696
30	1059498576
31	2124829944
32	4258791328
33	8532044360
34	17087943920

[0, 0, 0, 0, 0, 0, 0, 8, 32, 104, 304, 792, 1920, 4520, 10192, 22392, 48416, 102856, 215664, 448792, 925632, 1897064, 3872016, 7868344, 15936096, 32208136, 64946096, 130738776, 262886656, 527990696, 1059498576, 2124829944, 4258791328, 8532044360, 17087943920]

cp's OEIS Frontend

A357285 a(n) = number of subsets S of {1,2,...,n} having more than 2 elements such that (sum of least three elements of S) < max(S).

Table of values

List of values