A026477 - cp's OEIS frontend

A026477 a(1) = 1, a(2) = 2, a(3) = 3; and for n > 3, a(n) = smallest number > a(n-1) and not of the form a(i)a(j)a(k) for 1 <= i < j < k < n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	29
16	31
17	37
18	41
19	43
20	47
21	49
22	53
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	97
33	101
34	103
35	107
36	109
37	113
38	120
39	121
40	127
41	131
42	137
43	139
44	149
45	151
46	157
47	163
48	167
49	168
50	169
51	173
52	179
53	181
54	191
55	193
56	197
57	199
58	210
59	211
60	216
61	223

[1, 2, 3, 4, 5, 7, 9, 11, 13, 16, 17, 19, 23, 25, 29, 31, 37, 41, 43, 47, 49, 53, 59, 61, 67, 71, 73, 79, 81, 83, 89, 97, 101, 103, 107, 109, 113, 120, 121, 127, 131, 137, 139, 149, 151, 157, 163, 167, 168, 169, 173, 179, 181, 191, 193, 197, 199, 210, 211, 216, 223]

cp's OEIS Frontend

A026477 a(1) = 1, a(2) = 2, a(3) = 3; and for n > 3, a(n) = smallest number > a(n-1) and not of the form a(i)a(j)a(k) for 1 <= i < j < k < n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	29
16	31
17	37
18	41
19	43
20	47
21	49
22	53
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	97
33	101
34	103
35	107
36	109
37	113
38	120
39	121
40	127
41	131
42	137
43	139
44	149
45	151
46	157
47	163
48	167
49	168
50	169
51	173
52	179
53	181
54	191
55	193
56	197
57	199
58	210
59	211
60	216
61	223

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	29
16	31
17	37
18	41
19	43
20	47
21	49
22	53
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	97
33	101
34	103
35	107
36	109
37	113
38	120
39	121
40	127
41	131
42	137
43	139
44	149
45	151
46	157
47	163
48	167
49	168
50	169
51	173
52	179
53	181
54	191
55	193
56	197
57	199
58	210
59	211
60	216
61	223

cp's OEIS Frontend

A026477 a(1) = 1, a(2) = 2, a(3) = 3; and for n > 3, a(n) = smallest number > a(n-1) and not of the form a(i)*a(j)*a(k) for 1 <= i < j < k < n.

Table of values

List of values

A026477 a(1) = 1, a(2) = 2, a(3) = 3; and for n > 3, a(n) = smallest number > a(n-1) and not of the form a(i)a(j)a(k) for 1 <= i < j < k < n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	9
8	11
9	13
10	16
11	17
12	19
13	23
14	25
15	29
16	31
17	37
18	41
19	43
20	47
21	49
22	53
23	59
24	61
25	67
26	71
27	73
28	79
29	81
30	83
31	89
32	97
33	101
34	103
35	107
36	109
37	113
38	120
39	121
40	127
41	131
42	137
43	139
44	149
45	151
46	157
47	163
48	167
49	168
50	169
51	173
52	179
53	181
54	191
55	193
56	197
57	199
58	210
59	211
60	216
61	223