login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A368392 as a simple table

na(n)
11
21
31
41
51
64
717
81
91
1057
115
125
135
1473
155
165
1773
1873
195
201
215
2249321
2328165117
245
255
26169
275
28123019
2963425
3028165117
3163425
32123019
335
3449321
355
3674999
3763425
385
3958604629
4074999
4163425
425
435
4463425
455
4674999
475
485
4963425
5074999
5163425
525
5374999
545000341
5532385
565

[1,1,1,1,1,4,17,1,1,57,5,5,5,73,5,5,73,73,5,1,5,
 49321,28165117,5,5,169,5,123019,63425,28165117,
 63425,123019,5,49321,5,74999,63425,5,58604629,
 74999,63425,5,5,63425,5,74999,5,5,63425,74999,
 63425,5,74999,5000341,32385,5]