A006313 - OEIS

A006313 as a simple table

n	a(n)
1	1
2	2
3	44
4	74
5	76
6	94
7	156
8	158
9	176
10	188
11	198
12	248
13	288
14	306
15	318
16	330
17	348
18	370
19	382
20	396
21	452
22	456
23	470
24	474
25	476
26	478
27	560
28	568
29	598
30	642
31	686
32	688
33	690
34	736
35	774
36	776
37	778
38	790
39	830
40	832
41	834
42	846
43	900
44	916
45	946
46	956
47	972
48	982
49	984
50	1018
51	1044
52	1078

[1,2,44,74,76,94,156,158,176,188,198,248,288,306, 318,330,348,370,382,396,452,456,470,474,476,478, 560,568,598,642,686,688,690,736,774,776,778,790, 830,832,834,846,900,916,946,956,972,982,984,1018, 1044,1078]