OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..37
FORMULA
a(n) = p^n Product (p^n - p^k) for k=0 to n-1
MATHEMATICA
FoldList[ #1*5^#2 (5^#2-1)&, 1, Range[ 20 ] ]
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved