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A161635 as a simple table

na(n)
01
11
25
343
4553
59501
6204961
75330599
8162432593
95677941817
10224018814241
119848702243931
12477481361216377
1325309471236379669
141456206709854725921
1590387017392004356591
166020486941130334199201
17428348710658269120403313

[1,1,5,43,553,9501,204961,5330599,162432593,
 5677941817,224018814241,9848702243931,
 477481361216377,25309471236379669,
 1456206709854725921,90387017392004356591,
 6020486941130334199201,428348710658269120403313]