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A103553
Decimal expansion of solution to x*8^x = 1.
5
4, 1, 8, 6, 8, 6, 2, 1, 9, 7, 9, 7, 2, 4, 8, 4, 1, 2, 6, 7, 4, 7, 2, 2, 4, 8, 7, 4, 4, 7, 3, 7, 7, 9, 0, 3, 7, 0, 4, 4, 4, 5, 6, 7, 3, 3, 6, 3, 2, 1, 8, 6, 2, 1, 4, 5, 2, 1, 0, 0, 2, 1, 1, 8, 8, 6, 3, 4, 9, 1, 7, 2, 0, 5, 3, 1, 4, 5, 2, 0, 9, 1, 0, 6, 0, 6, 1, 0, 1, 2, 7, 9, 2, 1, 5, 5, 5, 4, 7, 3, 9, 6, 1, 2, 3
OFFSET
0,1
FORMULA
x*8^x = 1.
x = (1/8)^(1/8)^(1/8)^... = LambertW(log(8))/log(8). - Alois P. Heinz, Oct 25 2016
EXAMPLE
0.41868621979724841267472248744737790370444567336321...
MATHEMATICA
RealDigits[x/.FindRoot[x 8^x==1, {x, .4}, WorkingPrecision->100]][[1]] (* Harvey P. Dale, Jan 04 2011 *)
RealDigits[ProductLog[Log[8]]/Log[8], 10, 105][[1]] (* Amiram Eldar, May 04 2023 *)
KEYWORD
nonn,cons
AUTHOR
Zak Seidov, Mar 23 2005
EXTENSIONS
More terms from Harvey P. Dale, Jan 04 2011
STATUS
approved