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A203033 as a simple table

na(n)
14
2120
34740
4191208
58536230
6396419436
718828234948
8912456343092
944877327059082
102232846723233916
11112156061708925570
125678174300220035688
13289386692411558932884
1414832527343262783621824
15763984636989973669144320

[4,120,4740,191208,8536230,396419436,18828234948,
 912456343092,44877327059082,2232846723233916,
 112156061708925570,5678174300220035688,
 289386692411558932884,14832527343262783621824,
 763984636989973669144320]