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A046235 as a simple table

na(n)
10
21
37
437
5217
61297
77777
846657
9279937
101679617
1110077697
1260466177
13362797057
14860627456
152176782337

[0,1,7,37,217,1297,7777,46657,279937,1679617,
 10077697,60466177,362797057,860627456,2176782337]