login

A067991 as a simple table

na(n)
11
22
33
47
511
612
727
831
956
10107
11109
12132
13309
14343
15627
16968
171332
181891
193129
203434
215291
225656
238831
2413332
2518972
2619492
2728248
2837067
2958309
30107516
31140547
32278172
33281743
34368507
35424256
36774325
371247307
382788547
393126968
403660565
413949427
427732916

[1,2,3,7,11,12,27,31,56,107,109,132,309,343,627,
 968,1332,1891,3129,3434,5291,5656,8831,13332,
 18972,19492,28248,37067,58309,107516,140547,
 278172,281743,368507,424256,774325,1247307,
 2788547,3126968,3660565,3949427,7732916]