A026460 - cp's OEIS frontend

A026460 a(n) = least positive integer > a(n-1) and not a(i)*a(j)-2 for 1<=i<=j<=n, n >= 2.

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	15
11	17
12	19
13	20
14	21
15	24
16	26
17	27
18	29
19	32
20	33
21	35
22	36
23	37
24	39
25	40
26	41
27	44
28	45
29	47
30	48
31	50
32	51
33	54
34	56
35	57
36	59
37	60
38	63
39	65
40	67
41	68
42	69
43	71
44	72
45	75
46	77
47	80
48	81
49	84
50	87
51	89
52	90
53	91
54	92
55	95
56	96
57	99
58	101
59	104
60	105

[1, 3, 4, 5, 6, 8, 9, 11, 12, 15, 17, 19, 20, 21, 24, 26, 27, 29, 32, 33, 35, 36, 37, 39, 40, 41, 44, 45, 47, 48, 50, 51, 54, 56, 57, 59, 60, 63, 65, 67, 68, 69, 71, 72, 75, 77, 80, 81, 84, 87, 89, 90, 91, 92, 95, 96, 99, 101, 104, 105]

cp's OEIS Frontend

A026460 a(n) = least positive integer > a(n-1) and not a(i)*a(j)-2 for 1<=i<=j<=n, n >= 2.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	15
11	17
12	19
13	20
14	21
15	24
16	26
17	27
18	29
19	32
20	33
21	35
22	36
23	37
24	39
25	40
26	41
27	44
28	45
29	47
30	48
31	50
32	51
33	54
34	56
35	57
36	59
37	60
38	63
39	65
40	67
41	68
42	69
43	71
44	72
45	75
46	77
47	80
48	81
49	84
50	87
51	89
52	90
53	91
54	92
55	95
56	96
57	99
58	101
59	104
60	105

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	15
11	17
12	19
13	20
14	21
15	24
16	26
17	27
18	29
19	32
20	33
21	35
22	36
23	37
24	39
25	40
26	41
27	44
28	45
29	47
30	48
31	50
32	51
33	54
34	56
35	57
36	59
37	60
38	63
39	65
40	67
41	68
42	69
43	71
44	72
45	75
46	77
47	80
48	81
49	84
50	87
51	89
52	90
53	91
54	92
55	95
56	96
57	99
58	101
59	104
60	105

n	a(n)
1	1
2	3
3	4
4	5
5	6
6	8
7	9
8	11
9	12
10	15
11	17
12	19
13	20
14	21
15	24
16	26
17	27
18	29
19	32
20	33
21	35
22	36
23	37
24	39
25	40
26	41
27	44
28	45
29	47
30	48
31	50
32	51
33	54
34	56
35	57
36	59
37	60
38	63
39	65
40	67
41	68
42	69
43	71
44	72
45	75
46	77
47	80
48	81
49	84
50	87
51	89
52	90
53	91
54	92
55	95
56	96
57	99
58	101
59	104
60	105