A049990 - OEIS

A049990 as a simple table

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

[0,1,2,3,3,6,4,6,8,8,6,13,7,10,15,12,9,19,10,16, 20,15,12,26,16,17,25,21,15,34,16,22,30,22,24,40, 19,24,35,32,21,45,22,30,47,29,24,51,28,37,46,35, 27,56,36,40,51,36,30,70,31,38,61,43]

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

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

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