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A056487 as a simple table

na(n)
01
13
25
315
425
575
6125
7375
8625
91875
103125
119375
1215625
1346875
1478125
15234375
16390625
171171875
181953125
195859375
209765625
2129296875
2248828125
23146484375
24244140625
25732421875
261220703125
273662109375
286103515625
2918310546875
3030517578125
3191552734375

[1,3,5,15,25,75,125,375,625,1875,3125,9375,15625,
 46875,78125,234375,390625,1171875,1953125,5859375,
 9765625,29296875,48828125,146484375,244140625,
 732421875,1220703125,3662109375,6103515625,
 18310546875,30517578125,91552734375]