Powerful(1) numbers (A001694) whose digit reversal is a square.

Terms

a(0) =1a(1) =4a(2) =9a(3) =100a(4) =121a(5) =144a(6) =169a(7) =400a(8) =441a(9) =484a(10) =675a(11) =676a(12) =900a(13) =961a(14) =1000a(15) =1089a(16) =1800a(17) =4000a(18) =9000a(19) =9801a(20) =10000a(21) =10201a(22) =10404a(23) =10609a(24) =12100a(25) =12321a(26) =12544a(27) =12769a(28) =14400a(29) =14641