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A061742 as a simple table

na(n)
01
14
236
3900
444100
55336100
6901800900
7260620460100
894083986096100
949770428644836900
1041856930490307832900
1140224510201185827416900
1255067354465423397733736100
1392568222856376731590410384100
14171158644061440576710668800200900

[1,4,36,900,44100,5336100,901800900,260620460100,
 94083986096100,49770428644836900,
 41856930490307832900,40224510201185827416900,
 55067354465423397733736100,
 92568222856376731590410384100,
 171158644061440576710668800200900]