A349983 - cp's OEIS frontend

A349983 a(n) is the largest k such A000792(k) <= n.

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

[1, 2, 3, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11]

cp's OEIS Frontend

A349983 a(n) is the largest k such A000792(k) <= n.

Table of values

List of values

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

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

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