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A176594 as a simple table

na(n)
05
125
2625
3390625
4152587890625
523283064365386962890625
6542101086242752217003726400434970855712890625
7293873587705571876992184134305561419454666389193021880377187926569604314863681793212890625

[5,25,625,390625,152587890625,
 23283064365386962890625,
 542101086242752217003726400434970855712890625,
 29387358770557187699218413430556141945466638919302\
 1880377187926569604314863681793212890625]