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A163033 as a simple table

na(n)
128
21608
3143342
411457514
5866126030
664270256276
74741764527414
8349218174915782
925705066468491048
101891784307926020004
11139221054649194353330
1210245491277444041078478
13753978851322477798813560
1455486218768479949691575070
154083297106688472106576343018

[28,1608,143342,11457514,866126030,64270256276,
 4741764527414,349218174915782,25705066468491048,
 1891784307926020004,139221054649194353330,
 10245491277444041078478,753978851322477798813560,
 55486218768479949691575070,
 4083297106688472106576343018]