a(n) = least k such that 3rd elementary symmetric function of {1,2,...,k} >= 4th elementary symmetric function of {1,2,...,n}.

A027921

a(n) = least k such that 3rd elementary symmetric function of {1,2,...,k} >= 4th elementary symmetric function of {1,2,...,n}.

Terms

    a(0) =2a(1) =4a(2) =5a(3) =7a(4) =9a(5) =11a(6) =13a(7) =15a(8) =17a(9) =19a(10) =21a(11) =24a(12) =26a(13) =28a(14) =31a(15) =33a(16) =36a(17) =38a(18) =41a(19) =43a(20) =46a(21) =49a(22) =52a(23) =54a(24) =57a(25) =60a(26) =63a(27) =66a(28) =69a(29) =72

External references