A090700 - OEIS

A090700 as a simple table

n	a(n)
1	2
2	5
3	19
4	31
5	43
6	61
7	103
8	103
9	139
10	151
11	199
12	229
13	283
14	313
15	421
16	421
17	523
18	523
19	643
20	661
21	811
22	811
23	1021
24	1021
25	1231
26	1231
27	1429
28	1429
29	1609
30	1621
31	1873
32	1873
33	2143
34	2239
35	2551
36	2551
37	2791
38	2791
39	3121
40	3121
41	3463
42	3463
43	3853
44	3853
45	4243
46	4261
47	4723

[2,5,19,31,43,61,103,103,139,151,199,229,283,313, 421,421,523,523,643,661,811,811,1021,1021,1231, 1231,1429,1429,1609,1621,1873,1873,2143,2239,2551, 2551,2791,2791,3121,3121,3463,3463,3853,3853,4243, 4261,4723]