A139957 - OEIS

A139957 as a simple table

n	a(n)
1	103
2	127
3	151
4	223
5	271
6	463
7	631
8	727
9	919
10	967
11	1039
12	1063
13	1087
14	1279
15	1327
16	1447
17	1471
18	1543
19	1759
20	1783
21	1879
22	1951
23	2143
24	2287
25	2311
26	2503
27	2551
28	2671
29	2719
30	2767
31	3079
32	3319
33	3391
34	3511
35	3583
36	3727
37	3823
38	3919
39	3943
40	4231
41	4327

[103,127,151,223,271,463,631,727,919,967,1039, 1063,1087,1279,1327,1447,1471,1543,1759,1783,1879, 1951,2143,2287,2311,2503,2551,2671,2719,2767,3079, 3319,3391,3511,3583,3727,3823,3919,3943,4231,4327]