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A306059 as a simple table

na(n)
164
2432
31344
46955
567791
6513811
73363541
825699369
9199805626
101461477965
1110788085132
1281469649904
13609282707912
144528672442297
1533855657682271
16253322029642768
171890640721511027
1814116244272860371
19105494429560536925

[64,432,1344,6955,67791,513811,3363541,25699369,
 199805626,1461477965,10788085132,81469649904,
 609282707912,4528672442297,33855657682271,
 253322029642768,1890640721511027,
 14116244272860371,105494429560536925]