A026461 - cp's OEIS frontend

A026461 a(n) = least positive integer > a(n-1) and not a(i)*a(j)-2 for 1<=i<=j<=n.

n	a(n)
1	2
2	3
3	5
4	6
5	9
6	11
7	12
8	14
9	15
10	17
11	18
12	19
13	21
14	24
15	27
16	29
17	30
18	33
19	35
20	37
21	38
22	39
23	41
24	42
25	44
26	45
27	47
28	48
29	50
30	51
31	54
32	57
33	59
34	60
35	62
36	63
37	65
38	66
39	67
40	69
41	71
42	75
43	77
44	78
45	81
46	84
47	87
48	89
49	90
50	91
51	95
52	96
53	99
54	101
55	102
56	104
57	105
58	107
59	108
60	110

[2, 3, 5, 6, 9, 11, 12, 14, 15, 17, 18, 19, 21, 24, 27, 29, 30, 33, 35, 37, 38, 39, 41, 42, 44, 45, 47, 48, 50, 51, 54, 57, 59, 60, 62, 63, 65, 66, 67, 69, 71, 75, 77, 78, 81, 84, 87, 89, 90, 91, 95, 96, 99, 101, 102, 104, 105, 107, 108, 110]

cp's OEIS Frontend

A026461 a(n) = least positive integer > a(n-1) and not a(i)*a(j)-2 for 1<=i<=j<=n.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	6
5	9
6	11
7	12
8	14
9	15
10	17
11	18
12	19
13	21
14	24
15	27
16	29
17	30
18	33
19	35
20	37
21	38
22	39
23	41
24	42
25	44
26	45
27	47
28	48
29	50
30	51
31	54
32	57
33	59
34	60
35	62
36	63
37	65
38	66
39	67
40	69
41	71
42	75
43	77
44	78
45	81
46	84
47	87
48	89
49	90
50	91
51	95
52	96
53	99
54	101
55	102
56	104
57	105
58	107
59	108
60	110

n	a(n)
1	2
2	3
3	5
4	6
5	9
6	11
7	12
8	14
9	15
10	17
11	18
12	19
13	21
14	24
15	27
16	29
17	30
18	33
19	35
20	37
21	38
22	39
23	41
24	42
25	44
26	45
27	47
28	48
29	50
30	51
31	54
32	57
33	59
34	60
35	62
36	63
37	65
38	66
39	67
40	69
41	71
42	75
43	77
44	78
45	81
46	84
47	87
48	89
49	90
50	91
51	95
52	96
53	99
54	101
55	102
56	104
57	105
58	107
59	108
60	110

n	a(n)
1	2
2	3
3	5
4	6
5	9
6	11
7	12
8	14
9	15
10	17
11	18
12	19
13	21
14	24
15	27
16	29
17	30
18	33
19	35
20	37
21	38
22	39
23	41
24	42
25	44
26	45
27	47
28	48
29	50
30	51
31	54
32	57
33	59
34	60
35	62
36	63
37	65
38	66
39	67
40	69
41	71
42	75
43	77
44	78
45	81
46	84
47	87
48	89
49	90
50	91
51	95
52	96
53	99
54	101
55	102
56	104
57	105
58	107
59	108
60	110