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A028418 as a simple table

na(n)
11
23
313
467
5411
62911
723563
8213543
92149927
1023759791
11286370151
123734929903
1352455166063
14788704078527
1512648867695311
16215433088624351
173884791172487903
1873919882720901823
191480542628345939807
2031128584449987511871
21685635398619169059391

[1,3,13,67,411,2911,23563,213543,2149927,23759791,
 286370151,3734929903,52455166063,788704078527,
 12648867695311,215433088624351,3884791172487903,
 73919882720901823,1480542628345939807,
 31128584449987511871,685635398619169059391]