A357414 - cp's OEIS frontend

A357414 Number of nonempty subsets of {1..n} whose elements have an even geometric mean.

n	a(n)
0	0
1	0
2	1
3	1
4	4
5	4
6	5
7	5
8	8
9	12
10	13
11	13
12	20
13	20
14	21
15	21
16	30
17	30
18	59
19	59
20	62
21	62
22	63
23	63
24	94
25	104
26	105
27	187
28	190
29	190
30	191
31	191
32	306
33	306
34	307
35	307
36	564
37	564
38	565
39	565
40	582
41	582
42	583
43	583
44	586
45	600
46	601
47	601
48	1120
49	1134
50	1275
51	1275
52	1278
53	1278
54	2125
55	2125
56	2144
57	2144
58	2145
59	2145
60	2360
61	2360
62	2361
63	2381
64	3938
65	3938
66	3939
67	3939
68	3942
69	3942
70	3943
71	3943
72	6560
73	6560
74	6561
75	9663
76	9666

[0, 0, 1, 1, 4, 4, 5, 5, 8, 12, 13, 13, 20, 20, 21, 21, 30, 30, 59, 59, 62, 62, 63, 63, 94, 104, 105, 187, 190, 190, 191, 191, 306, 306, 307, 307, 564, 564, 565, 565, 582, 582, 583, 583, 586, 600, 601, 601, 1120, 1134, 1275, 1275, 1278, 1278, 2125, 2125, 2144, 2144, 2145, 2145, 2360, 2360, 2361, 2381, 3938, 3938, 3939, 3939, 3942, 3942, 3943, 3943, 6560, 6560, 6561, 9663, 9666]

cp's OEIS Frontend

A357414 Number of nonempty subsets of {1..n} whose elements have an even geometric mean.

Table of values

List of values