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A220990 as a simple table

na(n)
019
11801
2249697
335842177
45159904769
5743009863681
6106993223294977
715407021789577217
82218611109320327169
9319479999401581608961
1046005119909741205651457
116624737266953695061344257
12953962166440743626203987969

[19,1801,249697,35842177,5159904769,743009863681,
 106993223294977,15407021789577217,
 2218611109320327169,319479999401581608961,
 46005119909741205651457,6624737266953695061344257,
 953962166440743626203987969]