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A067270 as a simple table

na(n)
10
21
35
425
5625
69376
790625
8890625
97109376
1012890625
11212890625
121787109376
1381787109376
1459918212890625
15259918212890625
163740081787109376
1756259918212890625
18256259918212890625
197743740081787109376

[0,1,5,25,625,9376,90625,890625,7109376,12890625,
 212890625,1787109376,81787109376,59918212890625,
 259918212890625,3740081787109376,
 56259918212890625,256259918212890625,
 7743740081787109376]