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A156286 as a simple table

na(n)
11
21
310
41
5140
61419
71
85740
9242649
103350536
111
12700280
13165729267
147853656384
15161827775045
161
17255602200
18452606628177
1992036999164096
206040221703554625
21193317016162131576
221
23279628806800
244943822199577371
255392815929021041024
261352701610289354714125
27132670761753844630766736
286731905265314349384346775

[1,1,10,1,140,1419,1,5740,242649,3350536,1,700280,
 165729267,7853656384,161827775045,1,255602200,
 452606628177,92036999164096,6040221703554625,
 193317016162131576,1,279628806800,
 4943822199577371,5392815929021041024,
 1352701610289354714125,132670761753844630766736,
 6731905265314349384346775]