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A137790 as a simple table

na(n)
53761
677325
7896849
88869821
981550961
10719926125
116196609169
1252439953821
13438516694961
143635082523725
1529935019892689
16245264010263421
172001462391659761
1816280541150478125
19132087583623451409
201069376609438070621
218642407976463949361
2269743131733050637325

[3761,77325,896849,8869821,81550961,719926125,
 6196609169,52439953821,438516694961,3635082523725,
 29935019892689,245264010263421,2001462391659761,
 16280541150478125,132087583623451409,
 1069376609438070621,8642407976463949361,
 69743131733050637325]