A196722 - cp's OEIS frontend

A196722 Number of subsets of {1..n} (including empty set) such that the pairwise LCMs of elements are not distinct.

n	a(n)
0	1
1	2
2	4
3	7
4	11
5	16
6	23
7	30
8	38
9	47
10	58
11	69
12	83
13	96
14	111
15	128
16	144
17	161
18	181
19	200
20	223
21	246
22	269
23	292
24	319
25	344
26	371
27	398
28	429
29	458
30	496
31	527
32	559
33	594
34	629
35	668
36	708
37	745
38	784
39	825
40	870
41	911
42	962
43	1005
44	1052
45	1102
46	1149
47	1196
48	1248
49	1297
50	1349
51	1402
52	1457
53	1510

[1, 2, 4, 7, 11, 16, 23, 30, 38, 47, 58, 69, 83, 96, 111, 128, 144, 161, 181, 200, 223, 246, 269, 292, 319, 344, 371, 398, 429, 458, 496, 527, 559, 594, 629, 668, 708, 745, 784, 825, 870, 911, 962, 1005, 1052, 1102, 1149, 1196, 1248, 1297, 1349, 1402, 1457, 1510]

cp's OEIS Frontend

A196722 Number of subsets of {1..n} (including empty set) such that the pairwise LCMs of elements are not distinct.

Table of values

List of values