A112631 - cp's OEIS frontend

A112631 Rightmost term of each row of triangle A112599. (For n >= 2, a(n) = number of terms in the (n-1)th row of triangle A112599 which are coprime to n.)

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

[1, 1, 2, 0, 2, 0, 3, 5, 7, 5, 10, 4, 12, 9, 6, 5, 16, 3, 18, 2, 17, 5, 22, 8, 22, 12, 13, 8, 28, 5, 30, 5, 30, 15, 22, 9, 36, 23, 18, 16, 40, 2, 42, 15, 20, 9, 46, 20, 46, 12, 23, 21, 52, 10, 33, 26, 40, 27, 58, 21, 60, 23, 41, 31, 55, 11, 66, 32, 44, 21, 70, 19, 72, 23, 40, 28, 63, 17]

cp's OEIS Frontend

A112631 Rightmost term of each row of triangle A112599. (For n >= 2, a(n) = number of terms in the (n-1)th row of triangle A112599 which are coprime to n.)

Table of values

List of values

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

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

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