A357289 - cp's OEIS frontend

A357289 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	1
4	5
5	16
6	38
7	83
8	167
9	314
10	572
11	1021
12	1757
13	3004
14	5082
15	8439
16	13971
17	23086
18	37576
19	61281
20	99833
21	160912
22	259878
23	420283
24	672847
25	1081058
26	1739124
27	2774021
28	4439701
29	7121188
30	11326386
31	18087487
32	28944587
33	45962070
34	73268704
35	117090409
36	185684721
37	295697784
38	472033278
39	747983491

[0, 0, 0, 1, 5, 16, 38, 83, 167, 314, 572, 1021, 1757, 3004, 5082, 8439, 13971, 23086, 37576, 61281, 99833, 160912, 259878, 420283, 672847, 1081058, 1739124, 2774021, 4439701, 7121188, 11326386, 18087487, 28944587, 45962070, 73268704, 117090409, 185684721, 295697784, 472033278, 747983491]

cp's OEIS Frontend

A357289 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