A390458 - OEIS

A390458 as a simple table

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

[3,4,5,6,6,6,7,8,8,8,9,9,9,10,10,10,11,11,11,12, 12,12,12,12,13,13,13,14,14,14,14,14,15,15,15,15, 15,16,16,16,16,16,17,17,17,17,17,18,18,18,18,18, 18,18,19,19,19,19,19,20,20,20,20,20,20,20,21,21]

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

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

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