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A254425 as a simple table

na(n)
19623
2238639
36683795
4199339608
55865501284
6176249310185
75303248513516
8160601900255520
94871790218122520
10148101566721144218
114506468752512913580
12137234365855057507402
134181007197115662729640
14127420614137971238715046

[9623,238639,6683795,199339608,5865501284,
 176249310185,5303248513516,160601900255520,
 4871790218122520,148101566721144218,
 4506468752512913580,137234365855057507402,
 4181007197115662729640,127420614137971238715046]