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A374601 as a simple table

na(n)
11
21
34
428
5278
63554
755382
81015750
921401830
10508932130
1113475090126
12393026736854
1312518884854734
14432357148756210
1516092438499462630
16642170913160160710
1727351173629037613494
181238472705706192189442
1959411223892666111129022
203010044856761072109710262

[1,1,4,28,278,3554,55382,1015750,21401830,
 508932130,13475090126,393026736854,12518884854734,
 432357148756210,16092438499462630,
 642170913160160710,27351173629037613494,
 1238472705706192189442,59411223892666111129022,
 3010044856761072109710262]