A026462 - cp's OEIS frontend

A026462 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	4
3	5
4	6
5	7
6	8
7	9
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	19
16	20
17	21
18	24
19	25
20	27
21	29
22	31
23	32
24	35
25	36
26	37
27	39
28	41
29	44
30	45
31	49
32	51
33	55
34	56
35	57
36	59
37	60
38	65
39	67
40	69
41	71
42	72
43	77
44	80
45	81
46	84
47	85
48	87
49	90
50	91
51	92
52	95
53	96
54	99
55	101
56	104
57	105
58	107
59	109
60	111

[1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 19, 20, 21, 24, 25, 27, 29, 31, 32, 35, 36, 37, 39, 41, 44, 45, 49, 51, 55, 56, 57, 59, 60, 65, 67, 69, 71, 72, 77, 80, 81, 84, 85, 87, 90, 91, 92, 95, 96, 99, 101, 104, 105, 107, 109, 111]

cp's OEIS Frontend

A026462 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	4
3	5
4	6
5	7
6	8
7	9
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	19
16	20
17	21
18	24
19	25
20	27
21	29
22	31
23	32
24	35
25	36
26	37
27	39
28	41
29	44
30	45
31	49
32	51
33	55
34	56
35	57
36	59
37	60
38	65
39	67
40	69
41	71
42	72
43	77
44	80
45	81
46	84
47	85
48	87
49	90
50	91
51	92
52	95
53	96
54	99
55	101
56	104
57	105
58	107
59	109
60	111

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	8
7	9
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	19
16	20
17	21
18	24
19	25
20	27
21	29
22	31
23	32
24	35
25	36
26	37
27	39
28	41
29	44
30	45
31	49
32	51
33	55
34	56
35	57
36	59
37	60
38	65
39	67
40	69
41	71
42	72
43	77
44	80
45	81
46	84
47	85
48	87
49	90
50	91
51	92
52	95
53	96
54	99
55	101
56	104
57	105
58	107
59	109
60	111

n	a(n)
1	1
2	4
3	5
4	6
5	7
6	8
7	9
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	19
16	20
17	21
18	24
19	25
20	27
21	29
22	31
23	32
24	35
25	36
26	37
27	39
28	41
29	44
30	45
31	49
32	51
33	55
34	56
35	57
36	59
37	60
38	65
39	67
40	69
41	71
42	72
43	77
44	80
45	81
46	84
47	85
48	87
49	90
50	91
51	92
52	95
53	96
54	99
55	101
56	104
57	105
58	107
59	109
60	111