Palindromic numbers which are the product of a number k and its reversal (k written backwards).

Terms

a(0) =0a(1) =1a(2) =4a(3) =9a(4) =121a(5) =252a(6) =484a(7) =10201a(8) =12321a(9) =14641a(10) =20502a(11) =23632a(12) =26962a(13) =40804a(14) =44944a(15) =1002001a(16) =1113111a(17) =1226221a(18) =1234321a(19) =1357531a(20) =2005002a(21) =2126212a(22) =2216122a(23) =2249422a(24) =2347432a(25) =2429242a(26) =4008004a(27) =4229224a(28) =100020001a(29) =102030201