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A332930 as a simple table

na(n)
01
11
21
32
45
516
660
7255
81193
95862
1029875
11155995
12830539
134489352
1424581675

[1,1,1,2,5,16,60,255,1193,5862,29875,155995,
 830539,4489352,24581675]