A007431 - OEIS

A007431 as a simple table

n	a(n)
0	0
1	1
2	0
3	1
4	1
5	3
6	0
7	5
8	2
9	4
10	0
11	9
12	1
13	11
14	0
15	3
16	4
17	15
18	0
19	17
20	3
21	5
22	0
23	21
24	2
25	16
26	0
27	12
28	5
29	27
30	0
31	29
32	8
33	9
34	0
35	15
36	4
37	35
38	0
39	11
40	6
41	39
42	0
43	41
44	9
45	12
46	0
47	45
48	4
49	36
50	0
51	15
52	11
53	51
54	0
55	27
56	10
57	17
58	0
59	57
60	3
61	59
62	0
63	20
64	16
65	33
66	0
67	65
68	15
69	21
70	0
71	69
72	8
73	71
74	0
75	16
76	17
77	45
78	0
79	77
80	12
81	36
82	0
83	81
84	5
85	45
86	0

[0,1,0,1,1,3,0,5,2,4,0,9,1,11,0,3,4,15,0,17,3,5,0, 21,2,16,0,12,5,27,0,29,8,9,0,15,4,35,0,11,6,39,0, 41,9,12,0,45,4,36,0,15,11,51,0,27,10,17,0,57,3,59, 0,20,16,33,0,65,15,21,0,69,8,71,0,16,17,45,0,77, 12,36,0,81,5,45,0]

[0,1,0,1,1,3,0,5,2,4,0,9,1,11,0,3,4,15,0,17,3,5,0,
 21,2,16,0,12,5,27,0,29,8,9,0,15,4,35,0,11,6,39,0,
 41,9,12,0,45,4,36,0,15,11,51,0,27,10,17,0,57,3,59,
 0,20,16,33,0,65,15,21,0,69,8,71,0,16,17,45,0,77,
 12,36,0,81,5,45,0]

n	a(n)
0	0
1	1
2	0
3	1
4	1
5	3
6	0
7	5
8	2
9	4
10	0
11	9
12	1
13	11
14	0
15	3
16	4
17	15
18	0
19	17
20	3
21	5
22	0
23	21
24	2
25	16
26	0
27	12
28	5
29	27
30	0
31	29
32	8
33	9
34	0
35	15
36	4
37	35
38	0
39	11
40	6
41	39
42	0
43	41
44	9
45	12
46	0
47	45
48	4
49	36
50	0
51	15
52	11
53	51
54	0
55	27
56	10
57	17
58	0
59	57
60	3
61	59
62	0
63	20
64	16
65	33
66	0
67	65
68	15
69	21
70	0
71	69
72	8
73	71
74	0
75	16
76	17
77	45
78	0
79	77
80	12
81	36
82	0
83	81
84	5
85	45
86	0

n	a(n)
0	0
1	1
2	0
3	1
4	1
5	3
6	0
7	5
8	2
9	4
10	0
11	9
12	1
13	11
14	0
15	3
16	4
17	15
18	0
19	17
20	3
21	5
22	0
23	21
24	2
25	16
26	0
27	12
28	5
29	27
30	0
31	29
32	8
33	9
34	0
35	15
36	4
37	35
38	0
39	11
40	6
41	39
42	0
43	41
44	9
45	12
46	0
47	45
48	4
49	36
50	0
51	15
52	11
53	51
54	0
55	27
56	10
57	17
58	0
59	57
60	3
61	59
62	0
63	20
64	16
65	33
66	0
67	65
68	15
69	21
70	0
71	69
72	8
73	71
74	0
75	16
76	17
77	45
78	0
79	77
80	12
81	36
82	0
83	81
84	5
85	45
86	0

n	a(n)
0	0
1	1
2	0
3	1
4	1
5	3
6	0
7	5
8	2
9	4
10	0
11	9
12	1
13	11
14	0
15	3
16	4
17	15
18	0
19	17
20	3
21	5
22	0
23	21
24	2
25	16
26	0
27	12
28	5
29	27
30	0
31	29
32	8
33	9
34	0
35	15
36	4
37	35
38	0
39	11
40	6
41	39
42	0
43	41
44	9
45	12
46	0
47	45
48	4
49	36
50	0
51	15
52	11
53	51
54	0
55	27
56	10
57	17
58	0
59	57
60	3
61	59
62	0
63	20
64	16
65	33
66	0
67	65
68	15
69	21
70	0
71	69
72	8
73	71
74	0
75	16
76	17
77	45
78	0
79	77
80	12
81	36
82	0
83	81
84	5
85	45
86	0