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A278925 as a simple table

na(n)
01
12
2113
338736
446311652
5143820883800
6966462062838180
712412328008727861760
8278484670746890475310656
910197331743850942940587152000
10577793817845799602600135280168000
1148534819511412868687827815575204633600
125834998526939444017550860154062183732711680

[1,2,113,38736,46311652,143820883800,
 966462062838180,12412328008727861760,
 278484670746890475310656,
 10197331743850942940587152000,
 577793817845799602600135280168000,
 48534819511412868687827815575204633600,
 5834998526939444017550860154062183732711680]