A023728 - OEIS

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A023728 as a simple table

n	a(n)
1	31
2	131
3	151
4	155
5	157
6	158
7	159
8	161
9	166
10	171
11	181
12	206
13	231
14	281
15	406
16	531
17	631
18	651
19	655
20	657
21	658
22	659
23	661
24	666
25	671
26	681
27	706
28	731
29	751
30	755
31	757
32	758
33	759
34	761
35	766
36	771
37	775
38	777
39	778
40	779
41	785
42	787
43	788
44	789
45	790

[31,131,151,155,157,158,159,161,166,171,181,206, 231,281,406,531,631,651,655,657,658,659,661,666, 671,681,706,731,751,755,757,758,759,761,766,771, 775,777,778,779,785,787,788,789,790]

n	a(n)
1	31
2	131
3	151
4	155
5	157
6	158
7	159
8	161
9	166
10	171
11	181
12	206
13	231
14	281
15	406
16	531
17	631
18	651
19	655
20	657
21	658
22	659
23	661
24	666
25	671
26	681
27	706
28	731
29	751
30	755
31	757
32	758
33	759
34	761
35	766
36	771
37	775
38	777
39	778
40	779
41	785
42	787
43	788
44	789
45	790

n	a(n)
1	31
2	131
3	151
4	155
5	157
6	158
7	159
8	161
9	166
10	171
11	181
12	206
13	231
14	281
15	406
16	531
17	631
18	651
19	655
20	657
21	658
22	659
23	661
24	666
25	671
26	681
27	706
28	731
29	751
30	755
31	757
32	758
33	759
34	761
35	766
36	771
37	775
38	777
39	778
40	779
41	785
42	787
43	788
44	789
45	790

n	a(n)
1	31
2	131
3	151
4	155
5	157
6	158
7	159
8	161
9	166
10	171
11	181
12	206
13	231
14	281
15	406
16	531
17	631
18	651
19	655
20	657
21	658
22	659
23	661
24	666
25	671
26	681
27	706
28	731
29	751
30	755
31	757
32	758
33	759
34	761
35	766
36	771
37	775
38	777
39	778
40	779
41	785
42	787
43	788
44	789
45	790