A212721 - OEIS

A212721 as a simple table

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	2
13	3
14	4
15	5
16	6
17	1
18	2
19	3
20	4
21	5
22	6
23	8
24	9
25	1
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	12
36	1
37	2
38	3
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	12
47	15
48	16
49	18
50	1
51	2
52	3
53	4
54	5
55	6
56	7
57	8
58	9
59	10
60	12
61	14
62	15
63	16
64	18
65	20
66	24
67	27
68	1
69	2
70	3
71	4
72	5
73	6
74	7
75	8
76	9
77	10
78	12
79	14

[1,1,1,2,1,2,3,1,2,3,4,1,2,3,4,5,6,1,2,3,4,5,6,8, 9,1,2,3,4,5,6,7,8,9,10,12,1,2,3,4,5,6,7,8,9,10,12, 15,16,18,1,2,3,4,5,6,7,8,9,10,12,14,15,16,18,20, 24,27,1,2,3,4,5,6,7,8,9,10,12,14]

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	2
13	3
14	4
15	5
16	6
17	1
18	2
19	3
20	4
21	5
22	6
23	8
24	9
25	1
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	12
36	1
37	2
38	3
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	12
47	15
48	16
49	18
50	1
51	2
52	3
53	4
54	5
55	6
56	7
57	8
58	9
59	10
60	12
61	14
62	15
63	16
64	18
65	20
66	24
67	27
68	1
69	2
70	3
71	4
72	5
73	6
74	7
75	8
76	9
77	10
78	12
79	14

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	2
13	3
14	4
15	5
16	6
17	1
18	2
19	3
20	4
21	5
22	6
23	8
24	9
25	1
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	12
36	1
37	2
38	3
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	12
47	15
48	16
49	18
50	1
51	2
52	3
53	4
54	5
55	6
56	7
57	8
58	9
59	10
60	12
61	14
62	15
63	16
64	18
65	20
66	24
67	27
68	1
69	2
70	3
71	4
72	5
73	6
74	7
75	8
76	9
77	10
78	12
79	14

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	3
7	1
8	2
9	3
10	4
11	1
12	2
13	3
14	4
15	5
16	6
17	1
18	2
19	3
20	4
21	5
22	6
23	8
24	9
25	1
26	2
27	3
28	4
29	5
30	6
31	7
32	8
33	9
34	10
35	12
36	1
37	2
38	3
39	4
40	5
41	6
42	7
43	8
44	9
45	10
46	12
47	15
48	16
49	18
50	1
51	2
52	3
53	4
54	5
55	6
56	7
57	8
58	9
59	10
60	12
61	14
62	15
63	16
64	18
65	20
66	24
67	27
68	1
69	2
70	3
71	4
72	5
73	6
74	7
75	8
76	9
77	10
78	12
79	14