a(n) = least k such that 2nd elementary symmetric function of {1,2,...,k+1} >= 3rd elementary symmetric function of {1,2,...,n}.
A027919
a(n) = least k such that 2nd elementary symmetric function of {1,2,...,k+1} >= 3rd elementary symmetric function of {1,2,...,n}.
Terms
- a(0) =2a(1) =4a(2) =6a(3) =8a(4) =11a(5) =13a(6) =16a(7) =19a(8) =22a(9) =25a(10) =29a(11) =32a(12) =36a(13) =39a(14) =43a(15) =47a(16) =51a(17) =56a(18) =60a(19) =64a(20) =69a(21) =74a(22) =78a(23) =83a(24) =88a(25) =93a(26) =98a(27) =103a(28) =109a(29) =114
External references
- oeis: A027919