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A141495 as a simple table

na(n)
01
13
27
321
463
5189
6567
71701
85103
915309
1045927
11137781
12413343
131240029
143720087
1511160261
1633480783
17100442349
18301327047
19903981141
202711943423
218135830269
2224407490807
2373222472421
24219667417263
25659002251789

[1,3,7,21,63,189,567,1701,5103,15309,45927,137781,
 413343,1240029,3720087,11160261,33480783,
 100442349,301327047,903981141,2711943423,
 8135830269,24407490807,73222472421,219667417263,
 659002251789]