A151750 Numbers n such that gcd( binomial(2n,n), 3*5*7*11 ) = 1.

0, 1, 3160

Offset: 1

Author

N. J. A. Sloane, Jul 30 2009

Keywords

• nonn
• bref

Comments

It is conjectured that there are no other terms.

There are no further terms below 10^10000.

Links

• R. D. Mauldin, S. M. Ulam, Mathematical problems and games, Adv. Appl. Math. 8 (3) (1987) 281-344.
• C. Pomerance, Divisors of the middle binomial coefficient, Amer. Math. Monthly, 112 (2015), 636-644.