A088922 - cp's OEIS frontend

A088922 Consider the n X n matrix with entries (i*j mod n), where i,j=0..n-1; a(n) = rank of this matrix over the real numbers.

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	4
8	6
9	6
10	7
11	6
12	10
13	7
14	9
15	10
16	11
17	9
18	13
19	10
20	14
21	13
22	13
23	12
24	18
25	14
26	15
27	16
28	18
29	15
30	21
31	16
32	20
33	19
34	19
35	20
36	25
37	19
38	21
39	22
40	26
41	21
42	27
43	22
44	26
45	27
46	25
47	24
48	32
49	26
50	29
51	28
52	30
53	27
54	33
55	30
56	34
57	31
58	31
59	30
60	40
61	31
62	33
63	36
64	37
65	35
66	39
67	34
68	38
69	37
70	41
71	36
72	46
73	37
74	39
75	42
76	42
77	41
78	45
79	40
80	48
81	44
82	43
83	42
84	52
85	45
86	45
87	46
88	50
89	45
90	55
91	48
92	50
93	49
94	49
95	50
96	58
97	49
98	53
99	54
100	57

[0, 1, 2, 3, 3, 5, 4, 6, 6, 7, 6, 10, 7, 9, 10, 11, 9, 13, 10, 14, 13, 13, 12, 18, 14, 15, 16, 18, 15, 21, 16, 20, 19, 19, 20, 25, 19, 21, 22, 26, 21, 27, 22, 26, 27, 25, 24, 32, 26, 29, 28, 30, 27, 33, 30, 34, 31, 31, 30, 40, 31, 33, 36, 37, 35, 39, 34, 38, 37, 41, 36, 46, 37, 39, 42, 42, 41, 45, 40, 48, 44, 43, 42, 52, 45, 45, 46, 50, 45, 55, 48, 50, 49, 49, 50, 58, 49, 53, 54, 57]

cp's OEIS Frontend

A088922 Consider the n X n matrix with entries (i*j mod n), where i,j=0..n-1; a(n) = rank of this matrix over the real numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	4
8	6
9	6
10	7
11	6
12	10
13	7
14	9
15	10
16	11
17	9
18	13
19	10
20	14
21	13
22	13
23	12
24	18
25	14
26	15
27	16
28	18
29	15
30	21
31	16
32	20
33	19
34	19
35	20
36	25
37	19
38	21
39	22
40	26
41	21
42	27
43	22
44	26
45	27
46	25
47	24
48	32
49	26
50	29
51	28
52	30
53	27
54	33
55	30
56	34
57	31
58	31
59	30
60	40
61	31
62	33
63	36
64	37
65	35
66	39
67	34
68	38
69	37
70	41
71	36
72	46
73	37
74	39
75	42
76	42
77	41
78	45
79	40
80	48
81	44
82	43
83	42
84	52
85	45
86	45
87	46
88	50
89	45
90	55
91	48
92	50
93	49
94	49
95	50
96	58
97	49
98	53
99	54
100	57

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	4
8	6
9	6
10	7
11	6
12	10
13	7
14	9
15	10
16	11
17	9
18	13
19	10
20	14
21	13
22	13
23	12
24	18
25	14
26	15
27	16
28	18
29	15
30	21
31	16
32	20
33	19
34	19
35	20
36	25
37	19
38	21
39	22
40	26
41	21
42	27
43	22
44	26
45	27
46	25
47	24
48	32
49	26
50	29
51	28
52	30
53	27
54	33
55	30
56	34
57	31
58	31
59	30
60	40
61	31
62	33
63	36
64	37
65	35
66	39
67	34
68	38
69	37
70	41
71	36
72	46
73	37
74	39
75	42
76	42
77	41
78	45
79	40
80	48
81	44
82	43
83	42
84	52
85	45
86	45
87	46
88	50
89	45
90	55
91	48
92	50
93	49
94	49
95	50
96	58
97	49
98	53
99	54
100	57

n	a(n)
1	0
2	1
3	2
4	3
5	3
6	5
7	4
8	6
9	6
10	7
11	6
12	10
13	7
14	9
15	10
16	11
17	9
18	13
19	10
20	14
21	13
22	13
23	12
24	18
25	14
26	15
27	16
28	18
29	15
30	21
31	16
32	20
33	19
34	19
35	20
36	25
37	19
38	21
39	22
40	26
41	21
42	27
43	22
44	26
45	27
46	25
47	24
48	32
49	26
50	29
51	28
52	30
53	27
54	33
55	30
56	34
57	31
58	31
59	30
60	40
61	31
62	33
63	36
64	37
65	35
66	39
67	34
68	38
69	37
70	41
71	36
72	46
73	37
74	39
75	42
76	42
77	41
78	45
79	40
80	48
81	44
82	43
83	42
84	52
85	45
86	45
87	46
88	50
89	45
90	55
91	48
92	50
93	49
94	49
95	50
96	58
97	49
98	53
99	54
100	57