A384246 - cp's OEIS frontend

A384246 Triangle in which the n-th row gives the numbers from 1 to n whose largest divisor that is an infinitary divisor of n is 1.

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

[1, 1, 1, 2, 1, 2, 3, 1, 2, 3, 4, 1, 5, 1, 2, 3, 4, 5, 6, 1, 3, 5, 7, 1, 2, 3, 4, 5, 6, 7, 8, 1, 3, 7, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 5, 7, 10, 11, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 3, 5, 9, 11, 13, 1, 2, 4, 7, 8, 11, 13, 14, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]

cp's OEIS Frontend

A384246 Triangle in which the n-th row gives the numbers from 1 to n whose largest divisor that is an infinitary divisor of n is 1.

Table of values

List of values

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

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

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