A260502 - cp's OEIS frontend

A260502 Log_2 of the numerator of det(M) where M is the n X n matrix with M[i,j] = 1/lcm(i,j).

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	4
43	5
44	3
45	6
46	5
47	6
48	2
49	3
50	3
51	8
52	7
53	9
54	8
55	11
56	8
57	10
58	10
59	11
60	11
61	13
62	12
63	14
64	7
65	11
66	11
67	12
68	13
69	15
70	16
71	17
72	14
73	17
74	17
75	20
76	18
77	20
78	21
79	22
80	19
81	20
82	21
83	22
84	21
85	27
86	26
87	29
88	26
89	29

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 3, 1, 4, 4, 5, 3, 6, 5, 6, 2, 3, 3, 8, 7, 9, 8, 11, 8, 10, 10, 11, 11, 13, 12, 14, 7, 11, 11, 12, 13, 15, 16, 17, 14, 17, 17, 20, 18, 20, 21, 22, 19, 20, 21, 22, 21, 27, 26, 29, 26, 29]

cp's OEIS Frontend

A260502 Log_2 of the numerator of det(M) where M is the n X n matrix with M[i,j] = 1/lcm(i,j).

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	4
43	5
44	3
45	6
46	5
47	6
48	2
49	3
50	3
51	8
52	7
53	9
54	8
55	11
56	8
57	10
58	10
59	11
60	11
61	13
62	12
63	14
64	7
65	11
66	11
67	12
68	13
69	15
70	16
71	17
72	14
73	17
74	17
75	20
76	18
77	20
78	21
79	22
80	19
81	20
82	21
83	22
84	21
85	27
86	26
87	29
88	26
89	29

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	4
43	5
44	3
45	6
46	5
47	6
48	2
49	3
50	3
51	8
52	7
53	9
54	8
55	11
56	8
57	10
58	10
59	11
60	11
61	13
62	12
63	14
64	7
65	11
66	11
67	12
68	13
69	15
70	16
71	17
72	14
73	17
74	17
75	20
76	18
77	20
78	21
79	22
80	19
81	20
82	21
83	22
84	21
85	27
86	26
87	29
88	26
89	29

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	0
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	1
36	0
37	1
38	0
39	3
40	1
41	4
42	4
43	5
44	3
45	6
46	5
47	6
48	2
49	3
50	3
51	8
52	7
53	9
54	8
55	11
56	8
57	10
58	10
59	11
60	11
61	13
62	12
63	14
64	7
65	11
66	11
67	12
68	13
69	15
70	16
71	17
72	14
73	17
74	17
75	20
76	18
77	20
78	21
79	22
80	19
81	20
82	21
83	22
84	21
85	27
86	26
87	29
88	26
89	29