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A203756 as a simple table

na(n)
11
22
34624
4147968
55124555396
6830177974152
7142070471498727424
872740081407348441088
938931932500357955277610000
1048664915625447444097012500000
1163249728823972809508391754919837696

[1,2,4624,147968,5124555396,830177974152,
 142070471498727424,72740081407348441088,
 38931932500357955277610000,
 48664915625447444097012500000,
 63249728823972809508391754919837696]