A063280 - OEIS

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A063280 as a simple table

n	a(n)
2	-1
3	0
4	1
5	3
6	5
7	7
8	9
9	11
10	13
11	15
12	17
13	17
14	21
15	23
16	25
17	25
18	29
19	29
20	33
21	33
22	37
23	37
24	41
25	39
26	45
27	45
28	49
29	47
30	53
31	51
32	57
33	55
34	61
35	59
36	65
37	61
38	69
39	67
40	73
41	69
42	77
43	73
44	81
45	77
46	85
47	81
48	89
49	83
50	93
51	89
52	97
53	91
54	101
55	95
56	105
57	99
58	109
59	103
60	113
61	105
62	117
63	111

[-1,0,1,3,5,7,9,11,13,15,17,17,21,23,25,25,29,29, 33,33,37,37,41,39,45,45,49,47,53,51,57,55,61,59, 65,61,69,67,73,69,77,73,81,77,85,81,89,83,93,89, 97,91,101,95,105,99,109,103,113,105,117,111]

n	a(n)
2	-1
3	0
4	1
5	3
6	5
7	7
8	9
9	11
10	13
11	15
12	17
13	17
14	21
15	23
16	25
17	25
18	29
19	29
20	33
21	33
22	37
23	37
24	41
25	39
26	45
27	45
28	49
29	47
30	53
31	51
32	57
33	55
34	61
35	59
36	65
37	61
38	69
39	67
40	73
41	69
42	77
43	73
44	81
45	77
46	85
47	81
48	89
49	83
50	93
51	89
52	97
53	91
54	101
55	95
56	105
57	99
58	109
59	103
60	113
61	105
62	117
63	111

n	a(n)
2	-1
3	0
4	1
5	3
6	5
7	7
8	9
9	11
10	13
11	15
12	17
13	17
14	21
15	23
16	25
17	25
18	29
19	29
20	33
21	33
22	37
23	37
24	41
25	39
26	45
27	45
28	49
29	47
30	53
31	51
32	57
33	55
34	61
35	59
36	65
37	61
38	69
39	67
40	73
41	69
42	77
43	73
44	81
45	77
46	85
47	81
48	89
49	83
50	93
51	89
52	97
53	91
54	101
55	95
56	105
57	99
58	109
59	103
60	113
61	105
62	117
63	111

n	a(n)
2	-1
3	0
4	1
5	3
6	5
7	7
8	9
9	11
10	13
11	15
12	17
13	17
14	21
15	23
16	25
17	25
18	29
19	29
20	33
21	33
22	37
23	37
24	41
25	39
26	45
27	45
28	49
29	47
30	53
31	51
32	57
33	55
34	61
35	59
36	65
37	61
38	69
39	67
40	73
41	69
42	77
43	73
44	81
45	77
46	85
47	81
48	89
49	83
50	93
51	89
52	97
53	91
54	101
55	95
56	105
57	99
58	109
59	103
60	113
61	105
62	117
63	111