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A146800 as a simple table

na(n)
11
21
31
41
51
61
717
831
9559
101013
118291
1223145
13356907
141013595
15108749189
16407493401
1761299279691
18281660353619
1943848445982931
20246087198399431
2173605493456575165
22501006153269757647

[1,1,1,1,1,1,17,31,559,1013,8291,23145,356907,
 1013595,108749189,407493401,61299279691,
 281660353619,43848445982931,246087198399431,
 73605493456575165,501006153269757647]