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A146384 as a simple table

na(n)
11
21
31
41
53
610
729
8100
9387
102276
1117581
12155034
131632582
1420304423
15321404215
166545616593
17163131399978
184942168957230
19181963337378973
208263219425456168
21468671383459094714
2232913148405732346545

[1,1,1,1,3,10,29,100,387,2276,17581,155034,
 1632582,20304423,321404215,6545616593,
 163131399978,4942168957230,181963337378973,
 8263219425456168,468671383459094714,
 32913148405732346545]