A026463 - cp's OEIS frontend

A026463 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	2
2	4
3	5
4	7
5	9
6	10
7	11
8	13
9	15
10	17
11	19
12	21
13	22
14	25
15	27
16	29
17	30
18	31
19	35
20	37
21	39
22	41
23	44
24	45
25	46
26	49
27	51
28	54
29	55
30	57
31	59
32	62
33	64
34	65
35	67
36	69
37	70
38	71
39	77
40	78
41	81
42	84
43	85
44	87
45	91
46	92
47	94
48	95
49	99
50	101
51	102
52	104
53	105
54	107
55	109
56	110
57	111
58	113
59	120

[2, 4, 5, 7, 9, 10, 11, 13, 15, 17, 19, 21, 22, 25, 27, 29, 30, 31, 35, 37, 39, 41, 44, 45, 46, 49, 51, 54, 55, 57, 59, 62, 64, 65, 67, 69, 70, 71, 77, 78, 81, 84, 85, 87, 91, 92, 94, 95, 99, 101, 102, 104, 105, 107, 109, 110, 111, 113, 120]

cp's OEIS Frontend

A026463 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	2
2	4
3	5
4	7
5	9
6	10
7	11
8	13
9	15
10	17
11	19
12	21
13	22
14	25
15	27
16	29
17	30
18	31
19	35
20	37
21	39
22	41
23	44
24	45
25	46
26	49
27	51
28	54
29	55
30	57
31	59
32	62
33	64
34	65
35	67
36	69
37	70
38	71
39	77
40	78
41	81
42	84
43	85
44	87
45	91
46	92
47	94
48	95
49	99
50	101
51	102
52	104
53	105
54	107
55	109
56	110
57	111
58	113
59	120

n	a(n)
1	2
2	4
3	5
4	7
5	9
6	10
7	11
8	13
9	15
10	17
11	19
12	21
13	22
14	25
15	27
16	29
17	30
18	31
19	35
20	37
21	39
22	41
23	44
24	45
25	46
26	49
27	51
28	54
29	55
30	57
31	59
32	62
33	64
34	65
35	67
36	69
37	70
38	71
39	77
40	78
41	81
42	84
43	85
44	87
45	91
46	92
47	94
48	95
49	99
50	101
51	102
52	104
53	105
54	107
55	109
56	110
57	111
58	113
59	120

n	a(n)
1	2
2	4
3	5
4	7
5	9
6	10
7	11
8	13
9	15
10	17
11	19
12	21
13	22
14	25
15	27
16	29
17	30
18	31
19	35
20	37
21	39
22	41
23	44
24	45
25	46
26	49
27	51
28	54
29	55
30	57
31	59
32	62
33	64
34	65
35	67
36	69
37	70
38	71
39	77
40	78
41	81
42	84
43	85
44	87
45	91
46	92
47	94
48	95
49	99
50	101
51	102
52	104
53	105
54	107
55	109
56	110
57	111
58	113
59	120