login
Primes of form (2*10^(5n) - 10^(4n) + 2*10^(3n) + 10^(2n) + 10^n + 1)/3.
10

%I #17 Mar 04 2023 11:55:52

%S 2,64037,66666663333334000000033333336666667

%N Primes of form (2*10^(5n) - 10^(4n) + 2*10^(3n) + 10^(2n) + 10^n + 1)/3.

%C The Baxter-Hickerson function provides a number whose cube lacks zeros.

%H Ed Pegg, Jr., <a href="http://www.mathpuzzle.com/numbers.html">Fun with numbers</a>.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Baxter-HickersonFunction.html">Baxter-Hickerson Function</a>.

%Y Cubes : A052044, A052045, A051750, A051751, A051832. Squares : A052040, A052041, A052042, A052043.

%K hard,nonn,bref

%O 1,1

%A _G. L. Honaker, Jr._, Dec 11 1999

%E Next term has 665 digits.