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A119501 as a simple table

na(n)
10
20
30
41
52
68
745
8419
94798
1062754
11872411
1212728018
13192324654
142991463239
1547663036427
16775158142233
1712831576165782

[0,0,0,1,2,8,45,419,4798,62754,872411,12728018,
 192324654,2991463239,47663036427,775158142233,
 12831576165782]