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A071837 as a simple table

na(n)
14
227
372
4108
5800
63125
712500
8247808
9823543
1022579200
1137879808
12190512000
13266716800
14428652000
15529200000
16600112800
17868020300
181190700000
191234800000
201452124800
212420208000
222679075000
233267280800
243307500000
254984012800
266994132992
277351381800
287441875000
297717500000
309376762500

[4,27,72,108,800,3125,12500,247808,823543,
 22579200,37879808,190512000,266716800,428652000,
 529200000,600112800,868020300,1190700000,
 1234800000,1452124800,2420208000,2679075000,
 3267280800,3307500000,4984012800,6994132992,
 7351381800,7441875000,7717500000,9376762500]