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A074579 as a simple table

na(n)
03
123
2181
31457
411953
599593
6840241
77160057
861503553
9531715913
104620992401
1140333791257
12353325795553
133104682336233
1427353203130161
15241545689168057
162137316275469953
1718945908172796553
18168210593763149521

[3,23,181,1457,11953,99593,840241,7160057,
 61503553,531715913,4620992401,40333791257,
 353325795553,3104682336233,27353203130161,
 241545689168057,2137316275469953,
 18945908172796553,168210593763149521]