A087934 - OEIS

A087934

a(n) is the least k>=0 such that P(x)=(x-1)*(x-2)*..(x-n)-k has only 1 real root if n is odd, only 2 real roots if n is even.

%I #11 Apr 03 2020 11:33:52

%S 0,0,1,1,4,6,96,130,4930,6556,416615,547035,52346851,68052947,

%T 9150486666,11800704395,2122773858331,2719323939675,630854176216923,

%U 803548959057850,233667907156182198,296168864567954970,105531126177212999940,133179680978969198101,57078667671269237092154

%N a(n) is the least k>=0 such that P(x)=(x-1)*(x-2)*..(x-n)-k has only 1 real root if n is odd, only 2 real roots if n is even.

%K nonn

%O 1,5

%A _Benoit Cloitre_, Oct 27 2003

%E More terms from _Jinyuan Wang_, Apr 03 2020