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A324839 as a simple table

na(n)
11
20
31
41
52
63
78
816
935
1074
11166
12367
13831
141878
154299
169857
1722775
1852777
19122957
20287337

[1,0,1,1,2,3,8,16,35,74,166,367,831,1878,4299,
 9857,22775,52777,122957,287337]