A195153 - cp's OEIS frontend

A195153 Irregular triangle read by rows in which row n lists numbers d-1 that do not divide n, where d divides n.

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

[2, 3, 4, 5, 6, 3, 7, 2, 8, 4, 9, 10, 5, 11, 12, 6, 13, 2, 4, 14, 3, 7, 15, 16, 5, 8, 17, 18, 3, 9, 19, 2, 6, 20, 10, 21, 22, 5, 7, 11, 23, 4, 24, 12, 25, 2, 8, 26, 3, 6, 13, 27, 28, 4, 9, 14, 29, 30, 3, 7, 15, 31, 2, 10, 32, 16, 33, 4, 6, 34, 5, 8, 11, 17, 35]

cp's OEIS Frontend

A195153 Irregular triangle read by rows in which row n lists numbers d-1 that do not divide n, where d divides n.

Table of values

List of values

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

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

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