login

A073220 as a simple table

na(n)
11
27
313
485
591
6169
71099
81105
91183
102197
1114281
1214287
1314365
1415379
1528561
16185647
17185653
18185731
19186745
20199927
21371293
222413405
232413411
242413489
252414503
262427685
272599051
284826809
2931374259
3031374265
3131374343
3231375357

[1,7,13,85,91,169,1099,1105,1183,2197,14281,14287,
 14365,15379,28561,185647,185653,185731,186745,
 199927,371293,2413405,2413411,2413489,2414503,
 2427685,2599051,4826809,31374259,31374265,
 31374343,31375357]