A067368 - cp's OEIS frontend

A067368 a(n) is the smallest positive even integer that cannot be expressed as the product of two or three previous terms (not necessarily distinct).

n	a(n)
1	2
2	6
3	10
4	14
5	16
6	18
7	22
8	26
9	30
10	34
11	38
12	42
13	46
14	48
15	50
16	54
17	58
18	62
19	66
20	70
21	74
22	78
23	80
24	82
25	86
26	90
27	94
28	98
29	102
30	106
31	110
32	112
33	114
34	118
35	122
36	126
37	128
38	130
39	134
40	138
41	142
42	144
43	146
44	150
45	154
46	158
47	162
48	166
49	170
50	174
51	176
52	178
53	182
54	186
55	190
56	194
57	198
58	202
59	206

[2, 6, 10, 14, 16, 18, 22, 26, 30, 34, 38, 42, 46, 48, 50, 54, 58, 62, 66, 70, 74, 78, 80, 82, 86, 90, 94, 98, 102, 106, 110, 112, 114, 118, 122, 126, 128, 130, 134, 138, 142, 144, 146, 150, 154, 158, 162, 166, 170, 174, 176, 178, 182, 186, 190, 194, 198, 202, 206]

cp's OEIS Frontend

A067368 a(n) is the smallest positive even integer that cannot be expressed as the product of two or three previous terms (not necessarily distinct).

Table of values

List of values

n	a(n)
1	2
2	6
3	10
4	14
5	16
6	18
7	22
8	26
9	30
10	34
11	38
12	42
13	46
14	48
15	50
16	54
17	58
18	62
19	66
20	70
21	74
22	78
23	80
24	82
25	86
26	90
27	94
28	98
29	102
30	106
31	110
32	112
33	114
34	118
35	122
36	126
37	128
38	130
39	134
40	138
41	142
42	144
43	146
44	150
45	154
46	158
47	162
48	166
49	170
50	174
51	176
52	178
53	182
54	186
55	190
56	194
57	198
58	202
59	206

n	a(n)
1	2
2	6
3	10
4	14
5	16
6	18
7	22
8	26
9	30
10	34
11	38
12	42
13	46
14	48
15	50
16	54
17	58
18	62
19	66
20	70
21	74
22	78
23	80
24	82
25	86
26	90
27	94
28	98
29	102
30	106
31	110
32	112
33	114
34	118
35	122
36	126
37	128
38	130
39	134
40	138
41	142
42	144
43	146
44	150
45	154
46	158
47	162
48	166
49	170
50	174
51	176
52	178
53	182
54	186
55	190
56	194
57	198
58	202
59	206

n	a(n)
1	2
2	6
3	10
4	14
5	16
6	18
7	22
8	26
9	30
10	34
11	38
12	42
13	46
14	48
15	50
16	54
17	58
18	62
19	66
20	70
21	74
22	78
23	80
24	82
25	86
26	90
27	94
28	98
29	102
30	106
31	110
32	112
33	114
34	118
35	122
36	126
37	128
38	130
39	134
40	138
41	142
42	144
43	146
44	150
45	154
46	158
47	162
48	166
49	170
50	174
51	176
52	178
53	182
54	186
55	190
56	194
57	198
58	202
59	206