Each term is previous term plus floor of root mean square of two previous terms.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =9a(5) =16a(6) =28a(7) =50a(8) =90a(9) =162a(10) =293a(11) =529a(12) =956a(13) =1728a(14) =3124a(15) =5648a(16) =10211a(17) =18462a(18) =33380a(19) =60352a(20) =109119a(21) =197293a(22) =356716a(23) =644961a(24) =1166123a(25) =2108412a(26) =3812120a(27) =6892514a(28) =12462029a(29) =22532007