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A022563 as a simple table

na(n)
10
20
31
43
58
632
7126
8619
93332
1020910
11157721
121590330
1323074092
14487448150
1514466253437
16585505737038

[0,0,1,3,8,32,126,619,3332,20910,157721,1590330,
 23074092,487448150,14466253437,585505737038]