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A354891 as a simple table

na(n)
11
23
37
473
5121
69721
75041
81760641
944452801
10562615201
1139916801
123156125575681
136227020801
14192873372531841
15222245415808416001
1614806216643368550401
17355687428096001
1834884164976924636172801
19121645100408832001

[1,3,7,73,121,9721,5041,1760641,44452801,
 562615201,39916801,3156125575681,6227020801,
 192873372531841,222245415808416001,
 14806216643368550401,355687428096001,
 34884164976924636172801,121645100408832001]