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A321816 as a simple table

na(n)
11
21
3531442
41
5244140626
6531442
713841287202
81
9282430067923
10244140626
113138428376722
12531442
1323298085122482
1413841287202
15129746582562692
161
17582622237229762
18282430067923
192213314919066162
20244140626
217355841353205284
223138428376722

[1,1,531442,1,244140626,531442,13841287202,1,
 282430067923,244140626,3138428376722,531442,
 23298085122482,13841287202,129746582562692,1,
 582622237229762,282430067923,2213314919066162,
 244140626,7355841353205284,3138428376722]