A196723 - cp's OEIS frontend

A196723 Number of subsets of {1..n} (including empty set) such that the pairwise sums of distinct elements are all distinct.

n	a(n)
0	1
1	2
2	4
3	8
4	15
5	28
6	50
7	86
8	143
9	236
10	376
11	594
12	913
13	1380
14	2048
15	3016
16	4367
17	6302
18	8974
19	12670
20	17685
21	24580
22	33738
23	46072
24	62367
25	83990
26	112342
27	149734
28	198153
29	261562
30	343210
31	448694
32	583445
33	756846
34	976086
35	1255658
36	1607831
37	2053186
38	2610560
39	3312040
40	4183689

[1, 2, 4, 8, 15, 28, 50, 86, 143, 236, 376, 594, 913, 1380, 2048, 3016, 4367, 6302, 8974, 12670, 17685, 24580, 33738, 46072, 62367, 83990, 112342, 149734, 198153, 261562, 343210, 448694, 583445, 756846, 976086, 1255658, 1607831, 2053186, 2610560, 3312040, 4183689]

cp's OEIS Frontend

A196723 Number of subsets of {1..n} (including empty set) such that the pairwise sums of distinct elements are all distinct.

Table of values

List of values