Rotating digits of a(n)^2 right once still yields a square.

Terms

a(0) =1a(1) =2a(2) =3a(3) =16a(4) =21a(5) =31a(6) =129a(7) =221a(8) =247a(9) =258a(10) =1062a(11) =1593a(12) =1964a(13) =2221a(14) =13516a(15) =17287a(16) =18516a(17) =19821a(18) =22221a(19) =28064a(20) =29631a(21) =103764a(22) =182362a(23) =222221a(24) =273543a(25) =1246713a(26) =1509437a(27) =1635219a(28) =1856538a(29) =2222221