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A017645 as a simple table

na(n)
0100000
15153632
245435424
3205962976
4656356768
51680700000
63707398432
77339040224
813382255776
922877577568
1037129300000
1157735339232
1286617093024
13126049300576
14178689902368
15247609900000

[100000,5153632,45435424,205962976,656356768,
 1680700000,3707398432,7339040224,13382255776,
 22877577568,37129300000,57735339232,86617093024,
 126049300576,178689902368,247609900000]