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A168441 as a simple table

na(n)
01
11
23
317
4155
52025
634819
7743329
818937707
9560071193
1018844479635
11710440531665
1229654234779771
131357326276747721
1467589738142784803
153637403230889380097
16210358430818676801675
1713009719599952748481145

[1,1,3,17,155,2025,34819,743329,18937707,
 560071193,18844479635,710440531665,29654234779771,
 1357326276747721,67589738142784803,
 3637403230889380097,210358430818676801675,
 13009719599952748481145]