A139945 - OEIS

A139945 as a simple table

n	a(n)
1	7
2	79
3	163
4	211
5	379
6	487
7	499
8	547
9	571
10	751
11	823
12	907
13	991
14	1051
15	1303
16	1423
17	1663
18	1723
19	1831
20	1999
21	2011
22	2179
23	2251
24	2647
25	2683
26	2731
27	2851
28	3019
29	3067
30	3259
31	3271
32	3343
33	3607
34	3847
35	3907
36	4111
37	4159
38	4243
39	4363
40	4447
41	4519
42	4663
43	4783

[7,79,163,211,379,487,499,547,571,751,823,907,991, 1051,1303,1423,1663,1723,1831,1999,2011,2179,2251, 2647,2683,2731,2851,3019,3067,3259,3271,3343,3607, 3847,3907,4111,4159,4243,4363,4447,4519,4663,4783]