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A124348 as a simple table

na(n)
11
21
32
45
519
687
7484
83110
922869
10188938
111735684
1217544342
13193537909
142313316683
1529780777636
16410783319119
176043874244604
1894478706232996
191563722273109142
2027318062153696564
21502345167237496931

[1,1,2,5,19,87,484,3110,22869,188938,1735684,
 17544342,193537909,2313316683,29780777636,
 410783319119,6043874244604,94478706232996,
 1563722273109142,27318062153696564,
 502345167237496931]