login

A006956 as a simple table

na(n)
31
41
51
61
73
81
91
1015
111
125
1321
145
151
1621
171
181
19231
205
211
221365
231
2455
2521
261
271
28663
2911
305
3157
325
331
3415015
351
3617
37483
381
3911
4025935
411
425
4321
44935
451
467917
471
4823
4919437
505
511
523315
531
5455
5521
561
571
58191919
59253
602465
6121
625
631
641734915
651
661
6717157
6817
691

[1,1,1,1,3,1,1,15,1,5,21,5,1,21,1,1,231,5,1,1365,
 1,55,21,1,1,663,11,5,57,5,1,15015,1,17,483,1,11,
 25935,1,5,21,935,1,7917,1,23,19437,5,1,3315,1,55,
 21,1,1,191919,253,2465,21,5,1,1734915,1,1,17157,
 17,1]