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A230917 as a simple table

na(n)
10
20
30
4118
55714
6154352
74725576
8148720522
94752381758
10151802078918
114831723113864
12153597529651048
134882134369209864
14155195921955688850
154933695769219550664
16156842489770583030128
174985982499472122206542

[0,0,0,118,5714,154352,4725576,148720522,
 4752381758,151802078918,4831723113864,
 153597529651048,4882134369209864,
 155195921955688850,4933695769219550664,
 156842489770583030128,4985982499472122206542]