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A056398 as a simple table

na(n)
10
20
30
41
53
637
763
8479
91316
108597
1114619
12155999
13211231
141732907
155302823
1621559909
1743398413
18466495335
19625545865
205659500031
2115126813765
2272778025365
23132561145173
241460519554091
252338565021382

[0,0,0,1,3,37,63,479,1316,8597,14619,155999,
 211231,1732907,5302823,21559909,43398413,
 466495335,625545865,5659500031,15126813765,
 72778025365,132561145173,1460519554091,
 2338565021382]