login

A180422 as a simple table

na(n)
42
53
67
711
819
931
1053
1183
12139
13229
14373
15607
16983
171583
182579
194177
206763
2110939
2217707
2328649
2446351
2575017
26121379
27196387
28317797
29514219
30832003
311346249
322178283
333524569
345702867
359227443
3614930341
3724157811
3839088157
3963245971

[2,3,7,11,19,31,53,83,139,229,373,607,983,1583,
 2579,4177,6763,10939,17707,28649,46351,75017,
 121379,196387,317797,514219,832003,1346249,
 2178283,3524569,5702867,9227443,14930341,24157811,
 39088157,63245971]