A070932 - cp's OEIS frontend

A070932 Possible number of units in a finite (commutative or non-commutative) ring.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	14
13	15
14	16
15	18
16	20
17	21
18	22
19	24
20	26
21	27
22	28
23	30
24	31
25	32
26	36
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	52
35	54
36	56
37	58
38	60
39	62
40	63
41	64
42	66
43	70
44	72
45	78
46	80
47	81
48	82
49	84
50	88
51	90
52	92
53	93
54	96
55	98
56	100

[0, 1, 2, 3, 4, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 31, 32, 36, 40, 42, 44, 45, 46, 48, 49, 52, 54, 56, 58, 60, 62, 63, 64, 66, 70, 72, 78, 80, 81, 82, 84, 88, 90, 92, 93, 96, 98, 100]

cp's OEIS Frontend

A070932 Possible number of units in a finite (commutative or non-commutative) ring.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	14
13	15
14	16
15	18
16	20
17	21
18	22
19	24
20	26
21	27
22	28
23	30
24	31
25	32
26	36
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	52
35	54
36	56
37	58
38	60
39	62
40	63
41	64
42	66
43	70
44	72
45	78
46	80
47	81
48	82
49	84
50	88
51	90
52	92
53	93
54	96
55	98
56	100

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	14
13	15
14	16
15	18
16	20
17	21
18	22
19	24
20	26
21	27
22	28
23	30
24	31
25	32
26	36
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	52
35	54
36	56
37	58
38	60
39	62
40	63
41	64
42	66
43	70
44	72
45	78
46	80
47	81
48	82
49	84
50	88
51	90
52	92
53	93
54	96
55	98
56	100

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	6
7	7
8	8
9	9
10	10
11	12
12	14
13	15
14	16
15	18
16	20
17	21
18	22
19	24
20	26
21	27
22	28
23	30
24	31
25	32
26	36
27	40
28	42
29	44
30	45
31	46
32	48
33	49
34	52
35	54
36	56
37	58
38	60
39	62
40	63
41	64
42	66
43	70
44	72
45	78
46	80
47	81
48	82
49	84
50	88
51	90
52	92
53	93
54	96
55	98
56	100