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A142970 as a simple table

na(n)
00
11
26
361
4660
58901
6133266
72303865
843808040
9928665225
1021386693790
11537861526965
1214540730176700
13423407835413325
1413140639311294250
15434929825450371825
1615237733330856005200
17565064979900590948625
1822056613209702152061750
19905913636742121921038125

[0,1,6,61,660,8901,133266,2303865,43808040,
 928665225,21386693790,537861526965,14540730176700,
 423407835413325,13140639311294250,
 434929825450371825,15237733330856005200,
 565064979900590948625,22056613209702152061750,
 905913636742121921038125]