%I
%S 0,1,3160
%N Numbers n such that gcd( binomial(2n,n), 3*5*7*11 ) = 1.
%C It is conjectured that there are no other terms.
%C There are no further terms below 10^10000.
%H R. D. Mauldin, S. M. Ulam, <a href="http://dx.doi.org/10.1016/01968858(87)900261">Mathematical problems and games</a>, Adv. Appl. Math. 8 (3) (1987) 281344.
%H C. Pomerance, <a href="https://math.dartmouth.edu/~carlp/catalan5.pdf">Divisors of the middle binomial coefficient</a>, Amer. Math. Monthly, 112 (2015), 636644.
%K nonn,bref
%O 1,3
%A _N. J. A. Sloane_, Jul 30 2009
