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A150028 as a simple table

na(n)
01
12
26
316
454
5169
6602
71988
87290
925170
1093811
11330902
121249367
134499607
1417116040
1562347523
16238894837
17880763604
183388972673
1912582449763
2048639631649
21182013638337
22705478480829
232652531544952
2410314218236630
2538995799156417
26151909821456349
27576310438021719
282250333836996630

[1,2,6,16,54,169,602,1988,7290,25170,93811,330902,
 1249367,4499607,17116040,62347523,238894837,
 880763604,3388972673,12582449763,48639631649,
 182013638337,705478480829,2652531544952,
 10314218236630,38995799156417,151909821456349,
 576310438021719,2250333836996630]