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A175655 as a simple table

na(n)
01
14
28
322
450
5124
6290
7694
81628
93838
108978
1121004
1248962
13114022
14265004
15615262
161426658
173305212
187650722
1917697430
2040911740
2194528318
22218312114
23503994220
241163124866
252683496134
266189647948
2714273690782

[1,4,8,22,50,124,290,694,1628,3838,8978,21004,
 48962,114022,265004,615262,1426658,3305212,
 7650722,17697430,40911740,94528318,218312114,
 503994220,1163124866,2683496134,6189647948,
 14273690782]