514265domain: NAppears in sequencesPisot sequence T(5,9), a(n) = floor(a(n-1)^2/a(n-2)).at n=21A020750a(n) = F(n+1) + c(n) where F(k) is k-th Fibonacci number and c(n) is n-th non-Fibonacci number.at n=27A022799