A027421 - OEIS

A027421 as a simple table

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

[1,2,1,4,3,1,7,6,3,1,10,9,6,3,1,15,14,10,6,3,1,19, 18,14,10,6,3,1,26,25,20,15,10,6,3,1,31,30,25,20, 15,10,6,3,1,37,36,31,26,20,15,10,6,3,1,43,42,37, 32,26,21,15,10,6,3,1,54,53,47,41,34,28,21,15,10,6, 3,1]

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

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

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