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A241806 as a simple table

na(n)
11
22
34
424
5352
610944
7699136
889479168
922906494976
1011728124051456
1122906494976
1211728124051456
1312009599006670848
1424595658764948865024
15100743818301219142631424
16825293359523586851364405248
1713521606402434446949321074016256

[1,2,4,24,352,10944,699136,89479168,22906494976,
 11728124051456,22906494976,11728124051456,
 12009599006670848,24595658764948865024,
 100743818301219142631424,
 825293359523586851364405248,
 13521606402434446949321074016256]