A026449 - cp's OEIS frontend

A026449 a(n) = least positive integer > a(n-1) and not a(i)*a(j)+2 for i<=1<=j<=n, n >= 2/.

n	a(n)
1	1
2	3
3	4
4	7
5	8
6	12
7	13
8	16
9	17
10	20
11	21
12	24
13	25
14	28
15	29
16	32
17	33
18	36
19	37
20	40
21	43
22	44
23	47
24	48
25	52
26	55
27	56
28	59
29	60
30	63
31	64
32	67
33	68
34	71
35	72
36	75
37	76
38	79
39	80
40	83
41	84
42	87
43	88
44	91
45	92
46	95
47	96
48	99
49	100
50	103
51	104
52	107
53	108
54	111
55	112
56	115
57	116
58	119
59	120

[1, 3, 4, 7, 8, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29, 32, 33, 36, 37, 40, 43, 44, 47, 48, 52, 55, 56, 59, 60, 63, 64, 67, 68, 71, 72, 75, 76, 79, 80, 83, 84, 87, 88, 91, 92, 95, 96, 99, 100, 103, 104, 107, 108, 111, 112, 115, 116, 119, 120]

cp's OEIS Frontend

A026449 a(n) = least positive integer > a(n-1) and not a(i)*a(j)+2 for i<=1<=j<=n, n >= 2/.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	7
5	8
6	12
7	13
8	16
9	17
10	20
11	21
12	24
13	25
14	28
15	29
16	32
17	33
18	36
19	37
20	40
21	43
22	44
23	47
24	48
25	52
26	55
27	56
28	59
29	60
30	63
31	64
32	67
33	68
34	71
35	72
36	75
37	76
38	79
39	80
40	83
41	84
42	87
43	88
44	91
45	92
46	95
47	96
48	99
49	100
50	103
51	104
52	107
53	108
54	111
55	112
56	115
57	116
58	119
59	120

n	a(n)
1	1
2	3
3	4
4	7
5	8
6	12
7	13
8	16
9	17
10	20
11	21
12	24
13	25
14	28
15	29
16	32
17	33
18	36
19	37
20	40
21	43
22	44
23	47
24	48
25	52
26	55
27	56
28	59
29	60
30	63
31	64
32	67
33	68
34	71
35	72
36	75
37	76
38	79
39	80
40	83
41	84
42	87
43	88
44	91
45	92
46	95
47	96
48	99
49	100
50	103
51	104
52	107
53	108
54	111
55	112
56	115
57	116
58	119
59	120

n	a(n)
1	1
2	3
3	4
4	7
5	8
6	12
7	13
8	16
9	17
10	20
11	21
12	24
13	25
14	28
15	29
16	32
17	33
18	36
19	37
20	40
21	43
22	44
23	47
24	48
25	52
26	55
27	56
28	59
29	60
30	63
31	64
32	67
33	68
34	71
35	72
36	75
37	76
38	79
39	80
40	83
41	84
42	87
43	88
44	91
45	92
46	95
47	96
48	99
49	100
50	103
51	104
52	107
53	108
54	111
55	112
56	115
57	116
58	119
59	120