A156747 - OEIS

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A156747 as a simple table

n	a(n)
1	0
2	0
3	0
4	-1
5	0
6	2
7	2
8	3
9	2
10	2
11	0
12	-1
13	2
14	0
15	2
16	-1
17	0
18	4
19	4
20	7
21	6
22	8
23	6
24	7
25	4
26	4
27	0
28	-1
29	4
30	2
31	6
32	3
33	6
34	2
35	4
36	-1
37	0
38	6
39	6
40	11
41	10
42	14
43	12
44	15
45	12
46	14
47	10
48	11
49	6
50	6
51	0
52	-1
53	6
54	4
55	10
56	7
57	12
58	8
59	12
60	7
61	10
62	4
63	6
64	-1
65	0
66	8
67	8
68	15
69	14
70	20
71	18
72	23
73	20
74	24
75	20
76	23
77	18
78	20
79	14
80	15
81	8
82	8
83	0
84	-1
85	8
86	6
87	14
88	11

[0,0,0,-1,0,2,2,3,2,2,0,-1,2,0,2,-1,0,4,4,7,6,8,6, 7,4,4,0,-1,4,2,6,3,6,2,4,-1,0,6,6,11,10,14,12,15, 12,14,10,11,6,6,0,-1,6,4,10,7,12,8,12,7,10,4,6,-1, 0,8,8,15,14,20,18,23,20,24,20,23,18,20,14,15,8,8, 0,-1,8,6,14,11]

n	a(n)
1	0
2	0
3	0
4	-1
5	0
6	2
7	2
8	3
9	2
10	2
11	0
12	-1
13	2
14	0
15	2
16	-1
17	0
18	4
19	4
20	7
21	6
22	8
23	6
24	7
25	4
26	4
27	0
28	-1
29	4
30	2
31	6
32	3
33	6
34	2
35	4
36	-1
37	0
38	6
39	6
40	11
41	10
42	14
43	12
44	15
45	12
46	14
47	10
48	11
49	6
50	6
51	0
52	-1
53	6
54	4
55	10
56	7
57	12
58	8
59	12
60	7
61	10
62	4
63	6
64	-1
65	0
66	8
67	8
68	15
69	14
70	20
71	18
72	23
73	20
74	24
75	20
76	23
77	18
78	20
79	14
80	15
81	8
82	8
83	0
84	-1
85	8
86	6
87	14
88	11

n	a(n)
1	0
2	0
3	0
4	-1
5	0
6	2
7	2
8	3
9	2
10	2
11	0
12	-1
13	2
14	0
15	2
16	-1
17	0
18	4
19	4
20	7
21	6
22	8
23	6
24	7
25	4
26	4
27	0
28	-1
29	4
30	2
31	6
32	3
33	6
34	2
35	4
36	-1
37	0
38	6
39	6
40	11
41	10
42	14
43	12
44	15
45	12
46	14
47	10
48	11
49	6
50	6
51	0
52	-1
53	6
54	4
55	10
56	7
57	12
58	8
59	12
60	7
61	10
62	4
63	6
64	-1
65	0
66	8
67	8
68	15
69	14
70	20
71	18
72	23
73	20
74	24
75	20
76	23
77	18
78	20
79	14
80	15
81	8
82	8
83	0
84	-1
85	8
86	6
87	14
88	11

n	a(n)
1	0
2	0
3	0
4	-1
5	0
6	2
7	2
8	3
9	2
10	2
11	0
12	-1
13	2
14	0
15	2
16	-1
17	0
18	4
19	4
20	7
21	6
22	8
23	6
24	7
25	4
26	4
27	0
28	-1
29	4
30	2
31	6
32	3
33	6
34	2
35	4
36	-1
37	0
38	6
39	6
40	11
41	10
42	14
43	12
44	15
45	12
46	14
47	10
48	11
49	6
50	6
51	0
52	-1
53	6
54	4
55	10
56	7
57	12
58	8
59	12
60	7
61	10
62	4
63	6
64	-1
65	0
66	8
67	8
68	15
69	14
70	20
71	18
72	23
73	20
74	24
75	20
76	23
77	18
78	20
79	14
80	15
81	8
82	8
83	0
84	-1
85	8
86	6
87	14
88	11