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A207407 as a simple table

na(n)
114
2196
3966
44761
516284
655696
7154580
8429025
91033590
102490084
115404650
1211730625
1323481800
1447004736
1588175016
16165405321
17294131070
18523036900
19889299950
201512043225
212474485860
224049540496
236412154268
2410153182169

[14,196,966,4761,16284,55696,154580,429025,
 1033590,2490084,5404650,11730625,23481800,
 47004736,88175016,165405321,294131070,523036900,
 889299950,1512043225,2474485860,4049540496,
 6412154268,10153182169]