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A247150 as a simple table

na(n)
01
16
290
31314
421084
5353772
66128208
7108606408
81958248980
935787633828
10661145207064
1112322983505860
12231395387482470
134372431546366636
1483068148270734740
151585548331063624992
1630388252830928088010
17584527926996090202428
1811279880522021539956860

[1,6,90,1314,21084,353772,6128208,108606408,
 1958248980,35787633828,661145207064,
 12322983505860,231395387482470,4372431546366636,
 83068148270734740,1585548331063624992,
 30388252830928088010,584527926996090202428,
 11279880522021539956860]