OFFSET
1,2
COMMENTS
The function 'ksexp' is the n-base Kneser tetration, see references below.
REFERENCES
Hellmuth Kneser, Reelle analytische Lösungen der Gleichung phi(phi(x))=e^x und verwandter Funktionalgleichungen. J. Reine Angew. Math., 187 (1949), 56-67.
H. Trappmann & D. Kouznetsov, Uniqueness of Holomorphic Superlogarithms (2009)
LINKS
Sheldon Levenstein, Fast accurate Kneser superexponential algorithm
EXAMPLE
1.687635215119112465518894...
PROG
(PARI) \\ Download the algorithm for ksexp (see the link)
\r kneserquiet.gp; \\ Load the algorithm
b(i)=init(i); sexp(3/2)
return(1+sumalt(i=1, 1/b(i)));
CROSSREFS
KEYWORD
AUTHOR
Balarka Sen, Apr 25 2013
STATUS
approved