OFFSET
1,1
FORMULA
Equals 9.3188817588682147714986428688188651966599608644706733821414765...
MATHEMATICA
RealDigits[1 + 2 2^(1/2) + 3^(1/3) + 5^(1/5) + 6^(1/6) + 7^(1/7), 10, 120][[1]]
PROG
(Magma) 1+2*2^(1/2)+3^(1/3)+5^(1/5)+6^(1/6)+7^(1/7);
(PARI) sum(n=1, 7, sqrtn(n, n)) \\ Charles R Greathouse IV, Apr 20 2016
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Vincenzo Librandi, Nov 12 2014
STATUS
approved