A389910 - OEIS

A389910 as a simple table

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

[1,1,3,3,5,5,7,8,8,7,11,12,13,11,12,16,17,18,19, 20,20,13,23,24,18,17,16,28,29,30,31,32,28,19,30, 36,37,23,39,40,41,42,43,39,24,29,47,48,49,49,51, 51,53,54,42,56,57,31,59,60,61,37,40,64,65,65,67, 57,69,70,71,72,73,41,36,69,70,78,79,80,32]

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

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

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