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A080668 as a simple table

na(n)
12
210
333
488
5245
6936
75383
840832
9363609
103629800
1139918131
12479003328
136227022997
1487178293944
151307674371375
1620922789892096
17355687428100913
186402373705733832
19121645100408838859
202432902008176648000

[2,10,33,88,245,936,5383,40832,363609,3629800,
 39918131,479003328,6227022997,87178293944,
 1307674371375,20922789892096,355687428100913,
 6402373705733832,121645100408838859,
 2432902008176648000]