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A254172 as a simple table

na(n)
1348032
26159516
3119471400
42437141776
547722312832
6910592737776
717154177879840
8320795556150368
95990669265231248
10111829906812254944
112087633151218299392
1238972776946929655072
13727593935236788680400

[348032,6159516,119471400,2437141776,47722312832,
 910592737776,17154177879840,320795556150368,
 5990669265231248,111829906812254944,
 2087633151218299392,38972776946929655072,
 727593935236788680400]