Pisot sequence E(5,17), a(n) = floor(a(n-1)^2 / a(n-2) + 1/2).

Terms

a(0) =5a(1) =17a(2) =58a(3) =198a(4) =676a(5) =2308a(6) =7880a(7) =26904a(8) =91856a(9) =313616a(10) =1070752a(11) =3655776a(12) =12481600a(13) =42614848a(14) =145496192a(15) =496755072a(16) =1696027904a(17) =5790601472a(18) =19770350080a(19) =67500197376a(20) =230460089344a(21) =786839962624