OFFSET
1,1
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..10000
EXAMPLE
i=2,j=2,k=2: 2^2 * 2^2 * 2^2 = 64
i=2,j=2,k=3: 2^2 * 2^3 * 3^2 = 288
i=2,j=2,k=4: 2^2 * 2^4 * 4^2 = 1024
PROG
(PARI) list(lim)=my(v=List(), m=2*lambertw(sqrt(lim)*log(2)/4)\log(2), t); for(i=2, m, for(j=i, m, if(i^j*j^i*i^i>lim, break); for(k=i, m, t=i^j*j^k*k^i; if(t>lim, break); listput(v, t)))); Set(v) \\ Charles R Greathouse IV, Jun 28 2015
CROSSREFS
KEYWORD
nonn
AUTHOR
Marko Hermsen, Jun 26 2015
STATUS
approved