login

A054698 as a simple table

na(n)
13
243
3241
4683
5773
63947
77351
87351
97351
1018593
1169557
1269557
1369557
1469557
1569557
16250501
17250501
18250501
19740749
20740749
21740749
221530349
231530349
241530349
253021173
263021173
273021173
289690841
299690841
309690841

[3,43,241,683,773,3947,7351,7351,7351,18593,69557,
 69557,69557,69557,69557,250501,250501,250501,
 740749,740749,740749,1530349,1530349,1530349,
 3021173,3021173,3021173,9690841,9690841,9690841]