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A254532 as a simple table

na(n)
11
21
31
42
54
66
711
820
933
1062
11135
12317
13692
141345
152651
165741
1712576
1825825
1949270
2090118
21168115
22340003
23751400
241741713
254057301
269232683
2720184851
2842473752
2987925348
30183030469
31382853596
32790870128
331597901060
343189861839
356430641490

[1,1,1,2,4,6,11,20,33,62,135,317,692,1345,2651,
 5741,12576,25825,49270,90118,168115,340003,751400,
 1741713,4057301,9232683,20184851,42473752,
 87925348,183030469,382853596,790870128,1597901060,
 3189861839,6430641490]