Numbers whose square is a permutational number A134640.

Terms

a(0) =0a(1) =1a(2) =15a(3) =50a(4) =85a(5) =195a(6) =327a(7) =561a(8) =789a(9) =867a(10) =1323a(11) =1764a(12) =2450a(13) =2751a(14) =2858a(15) =2878a(16) =3213a(17) =3418a(18) =3538a(19) =4834a(20) =4846a(21) =5062a(22) =5342a(23) =5770a(24) =6286a(25) =7814a(26) =8574a(27) =8634a(28) =9722a(29) =10254