A112635 - cp's OEIS frontend

A112635 a(n) = rightmost term of n-th row of triangle A112592. (For n >= 2, a(n) = number of terms in the (n-1)th row of triangle A112592 which are coprime to n.)

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

[0, 0, 1, 2, 4, 0, 3, 5, 4, 1, 10, 0, 6, 2, 13, 10, 16, 1, 18, 6, 14, 8, 22, 4, 23, 6, 17, 8, 28, 15, 30, 11, 19, 18, 24, 2, 36, 21, 28, 12, 40, 12, 42, 20, 24, 21, 46, 12, 47, 24, 36, 2, 40, 21, 49, 37, 22, 26, 58, 14, 60, 31, 51, 44, 50, 8, 66, 36, 44, 23, 70, 8, 72, 37, 55, 40, 62, 20]

cp's OEIS Frontend

A112635 a(n) = rightmost term of n-th row of triangle A112592. (For n >= 2, a(n) = number of terms in the (n-1)th row of triangle A112592 which are coprime to n.)

Table of values

List of values

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

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

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