login

A255000 as a simple table

na(n)
13
27
311
419
517
629
723
837
947
1037
1159
1253
1347
1461
1573
1679
1767
1889
1983
2079
21103
22101
23109
24131
25109
26107
27127
28113
29137
30193
31149
32163
33149
34193
35157
36181
37191
38181
39197
40199
41191
42239
43197
44223
45211
46271
47277
48239
49233
50251
51269
52251
53307
54281
55283
56293

[3,7,11,19,17,29,23,37,47,37,59,53,47,61,73,79,67,
 89,83,79,103,101,109,131,109,107,127,113,137,193,
 149,163,149,193,157,181,191,181,197,199,191,239,
 197,223,211,271,277,239,233,251,269,251,307,281,
 283,293]