OFFSET
1,2
EXAMPLE
a(3) = 57 because 57*3!+1 = 343 = 7^3.
MATHEMATICA
a={}; Do[k = 2; While[ !IntegerQ[(k^n - 1)/n!], k++ ]; AppendTo[a, (k^n-1)/n!], {n, 1, 10}]; a
CROSSREFS
KEYWORD
nonn
AUTHOR
Michel Lagneau, Aug 03 2011
STATUS
approved