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A228712 as a simple table

na(n)
01
13
272
32307
486295
53513477
6151235361
76768437853
8311788291023
914685531568689
10704028657330720
1134239755370728001
121685178804762196176
1383776625650642935108
144200738946110487797030
15212201486734654901466543
1610789009182188638106874636
17551682346017956870539952958

[1,3,72,2307,86295,3513477,151235361,6768437853,
 311788291023,14685531568689,704028657330720,
 34239755370728001,1685178804762196176,
 83776625650642935108,4200738946110487797030,
 212201486734654901466543,
 10789009182188638106874636,
 551682346017956870539952958]