login

A297191 as a simple table

na(n)
01
11
23
31
41
57
613
77
81
91
1011
1141
1263
1341
1411
151
161
1715
1885
19231
20321
21231
2285
2315
241
251
2619
27145
28575
291289
301683
311289
32575
33145
3419
351
361
3723
38221
391159
403649
417183
428989
437183
443649
451159
46221
4723
481
491
5027
51313
522047
538361
5422363
5540081
5648639
5740081

[1,1,3,1,1,7,13,7,1,1,11,41,63,41,11,1,1,15,85,
 231,321,231,85,15,1,1,19,145,575,1289,1683,1289,
 575,145,19,1,1,23,221,1159,3649,7183,8989,7183,
 3649,1159,221,23,1,1,27,313,2047,8361,22363,40081,
 48639,40081]