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A139198 as a simple table

na(n)
311
4503
53991679
6622702079
735568742809599
812164510040883199
92585201673888497663999
10884176199373970195454361599999
11822283865417792281772556287999999

[11,503,3991679,622702079,35568742809599,
 12164510040883199,2585201673888497663999,
 884176199373970195454361599999,
 822283865417792281772556287999999]