OFFSET
2,1
FORMULA
First nonzero digit of W(log(n))/log(n) for integer n > 1. Here W is the Lambert W function.
EXAMPLE
a(2) = 6 because 6 is the first digit of the solution (z = 0.641...) to the generating equation log_2(z) = -z.
PROG
Mathcad program for first 3000 or so terms (substitute an integer > 1 for n): trunc(10*root(log(z, n)+z, z))
CROSSREFS
KEYWORD
nonn,base
AUTHOR
A. Timothy Royappa, Apr 08 2008, Apr 14 2008
STATUS
approved