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A140925 as a simple table

na(n)
01
166
21716
326026
4273273
52186184
614158144
777364144
8367479684
91551580888
105924217936
1120734762776
1267255063876
13203982391536
14582806832960
151578435172600
164073755482225
1710064572367850
1823896002230100
1954709268263650
20121141951155225
21260114319363600

[1,66,1716,26026,273273,2186184,14158144,77364144,
 367479684,1551580888,5924217936,20734762776,
 67255063876,203982391536,582806832960,
 1578435172600,4073755482225,10064572367850,
 23896002230100,54709268263650,121141951155225,
 260114319363600]