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A167031 as a simple table

na(n)
01
120
2337
35461
487653
51403557
622461349
7359399333
85750460325
992007649189
101472123522981
1123553980911525
12376863712759717
136029819476856741
1496477111920512933
151543633791891427237
1624698140674915717029

[1,20,337,5461,87653,1403557,22461349,359399333,
 5750460325,92007649189,1472123522981,
 23553980911525,376863712759717,6029819476856741,
 96477111920512933,1543633791891427237,
 24698140674915717029]