OFFSET
1,1
COMMENTS
2.7131636040042392095764012768285093718781...
FORMULA
Equals log(15)/W(log(15)), where W(z) is the Lambert W Function.
MATHEMATICA
RealDigits[Log[15]/ProductLog[Log[15]], 10, 100][[1]] (* Amiram Eldar, Jun 02 2021 *)
RealDigits[x/.FindRoot[x^x==15, {x, 2.7}, WorkingPrecision->120], 10, 120][[1]] (* Harvey P. Dale, Apr 18 2022 *)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Christoph B. Kassir, Jun 02 2021
STATUS
approved