a(n) is the smallest number m such that binomial(m,n) is nonzero and is divisible by n!.

A320920

a(n) is the smallest number m such that binomial(m,n) is nonzero and is divisible by n!.

Terms

    a(0) =1a(1) =4a(2) =9a(3) =33a(4) =28a(5) =165a(6) =54a(7) =1029a(8) =40832a(9) =31752a(10) =28680a(11) =2588680a(12) =2162700a(13) =12996613a(14) =12341252a(15) =4516741125a(16) =500367376a(17) =133207162881a(18) =93770874890

External references