42965domain: NAppears in sequencesPisot sequence P(6,11), a(0)=6, a(1)=11, a(n+1) is the nearest integer to a(n)^2/a(n-1).at n=15A021011a(n) = 625*n^2 - 886*n + 314.at n=8A157618Numbers k such that the equation x^2 - k*y^4 = -1 has a solution for which |y| > 2.at n=24A356488