login

A179873 as a simple table

na(n)
11
21
33
47
57
611
715
815
919
1023
1127
1231
1331
1435
1537
1639
1739
1847
1955
2055
2157
2259
2361
2463
2567
2671
2771
2873
2975
3077
3179
3287
3389
3491
3595
3697
3799
38111
39111
40113
41115
42119
43119
44121
45125
46127
47131
48135
49137
50143

[1,1,3,7,7,11,15,15,19,23,27,31,31,35,37,39,39,47,
 55,55,57,59,61,63,67,71,71,73,75,77,79,87,89,91,
 95,97,99,111,111,113,115,119,119,121,125,127,131,
 135,137,143]