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A337003 as a simple table

na(n)
11
24
318
432
5250
672
73430
86400
934506
1029000
11705430
121254816
1310400598
148281392
1586567400
16300533760
172333606218
182172355848
1935345263798
2068442424000
21332533406646
22554415527952
238233430727598
2412704658876288
25105035376968750

[1,4,18,32,250,72,3430,6400,34506,29000,705430,
 1254816,10400598,8281392,86567400,300533760,
 2333606218,2172355848,35345263798,68442424000,
 332533406646,554415527952,8233430727598,
 12704658876288,105035376968750]