login

A074872 as a simple table

na(n)
11
21
35
45
525
625
7125
8125
9625
10625
113125
123125
1315625
1415625
1578125
1678125
17390625
18390625
191953125
201953125
219765625
229765625
2348828125
2448828125
25244140625
26244140625
271220703125
281220703125
296103515625
306103515625
3130517578125
3230517578125
33152587890625

[1,1,5,5,25,25,125,125,625,625,3125,3125,15625,
 15625,78125,78125,390625,390625,1953125,1953125,
 9765625,9765625,48828125,48828125,244140625,
 244140625,1220703125,1220703125,6103515625,
 6103515625,30517578125,30517578125,152587890625]