A161720 - OEIS

A161720 as a simple table

n	a(n)
3	-1
4	0
5	2
6	3
7	5
8	6
9	8
10	11
11	12
12	15
13	17
14	18
15	20
16	23
17	26
18	27
19	30
20	32
21	33
22	36
23	38
24	41
25	45
26	47
27	48
28	50
29	51
30	53
31	60
32	62
33	65
34	66
35	71
36	72
37	75
38	78
39	80
40	83
41	86
42	87
43	92
44	93
45	95
46	96
47	102
48	108
49	110
50	111
51	113
52	116
53	117
54	122
55	125
56	128
57	131
58	132

[-1,0,2,3,5,6,8,11,12,15,17,18,20,23,26,27,30,32, 33,36,38,41,45,47,48,50,51,53,60,62,65,66,71,72, 75,78,80,83,86,87,92,93,95,96,102,108,110,111,113, 116,117,122,125,128,131,132]

n	a(n)
3	-1
4	0
5	2
6	3
7	5
8	6
9	8
10	11
11	12
12	15
13	17
14	18
15	20
16	23
17	26
18	27
19	30
20	32
21	33
22	36
23	38
24	41
25	45
26	47
27	48
28	50
29	51
30	53
31	60
32	62
33	65
34	66
35	71
36	72
37	75
38	78
39	80
40	83
41	86
42	87
43	92
44	93
45	95
46	96
47	102
48	108
49	110
50	111
51	113
52	116
53	117
54	122
55	125
56	128
57	131
58	132

n	a(n)
3	-1
4	0
5	2
6	3
7	5
8	6
9	8
10	11
11	12
12	15
13	17
14	18
15	20
16	23
17	26
18	27
19	30
20	32
21	33
22	36
23	38
24	41
25	45
26	47
27	48
28	50
29	51
30	53
31	60
32	62
33	65
34	66
35	71
36	72
37	75
38	78
39	80
40	83
41	86
42	87
43	92
44	93
45	95
46	96
47	102
48	108
49	110
50	111
51	113
52	116
53	117
54	122
55	125
56	128
57	131
58	132

n	a(n)
3	-1
4	0
5	2
6	3
7	5
8	6
9	8
10	11
11	12
12	15
13	17
14	18
15	20
16	23
17	26
18	27
19	30
20	32
21	33
22	36
23	38
24	41
25	45
26	47
27	48
28	50
29	51
30	53
31	60
32	62
33	65
34	66
35	71
36	72
37	75
38	78
39	80
40	83
41	86
42	87
43	92
44	93
45	95
46	96
47	102
48	108
49	110
50	111
51	113
52	116
53	117
54	122
55	125
56	128
57	131
58	132