A190223 - cp's OEIS frontend

A190223 Numbers all of whose divisors are numbers whose decimal digits are noncomposite numbers (1,2,3,5,7).

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	15
9	17
10	21
11	22
12	23
13	25
14	31
15	33
16	35
17	37
18	51
19	53
20	55
21	71
22	73
23	75
24	77
25	111
26	113
27	115
28	121
29	125
30	127
31	131
32	137
33	151
34	155
35	157
36	173
37	175
38	211
39	213
40	217
41	221
42	223
43	227
44	231
45	233
46	251
47	253
48	257
49	271
50	275
51	277
52	311
53	313
54	317
55	331
56	337
57	353

[1, 2, 3, 5, 7, 11, 13, 15, 17, 21, 22, 23, 25, 31, 33, 35, 37, 51, 53, 55, 71, 73, 75, 77, 111, 113, 115, 121, 125, 127, 131, 137, 151, 155, 157, 173, 175, 211, 213, 217, 221, 223, 227, 231, 233, 251, 253, 257, 271, 275, 277, 311, 313, 317, 331, 337, 353]

cp's OEIS Frontend

A190223 Numbers all of whose divisors are numbers whose decimal digits are noncomposite numbers (1,2,3,5,7).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	15
9	17
10	21
11	22
12	23
13	25
14	31
15	33
16	35
17	37
18	51
19	53
20	55
21	71
22	73
23	75
24	77
25	111
26	113
27	115
28	121
29	125
30	127
31	131
32	137
33	151
34	155
35	157
36	173
37	175
38	211
39	213
40	217
41	221
42	223
43	227
44	231
45	233
46	251
47	253
48	257
49	271
50	275
51	277
52	311
53	313
54	317
55	331
56	337
57	353

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	15
9	17
10	21
11	22
12	23
13	25
14	31
15	33
16	35
17	37
18	51
19	53
20	55
21	71
22	73
23	75
24	77
25	111
26	113
27	115
28	121
29	125
30	127
31	131
32	137
33	151
34	155
35	157
36	173
37	175
38	211
39	213
40	217
41	221
42	223
43	227
44	231
45	233
46	251
47	253
48	257
49	271
50	275
51	277
52	311
53	313
54	317
55	331
56	337
57	353

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	11
7	13
8	15
9	17
10	21
11	22
12	23
13	25
14	31
15	33
16	35
17	37
18	51
19	53
20	55
21	71
22	73
23	75
24	77
25	111
26	113
27	115
28	121
29	125
30	127
31	131
32	137
33	151
34	155
35	157
36	173
37	175
38	211
39	213
40	217
41	221
42	223
43	227
44	231
45	233
46	251
47	253
48	257
49	271
50	275
51	277
52	311
53	313
54	317
55	331
56	337
57	353