Palindromes that are not of the form x^2 + y^2 + z^2 where x, y, z are integers.

Terms

a(0) =7a(1) =55a(2) =111a(3) =151a(4) =191a(5) =252a(6) =303a(7) =343a(8) =383a(9) =444a(10) =535a(11) =575a(12) =636a(13) =727a(14) =767a(15) =828a(16) =919a(17) =959a(18) =999a(19) =1111a(20) =1551a(21) =1991a(22) =2332a(23) =3223a(24) =3663a(25) =4444a(26) =5335a(27) =5775a(28) =6556a(29) =7007