Square numbers not divisible by 100 that remain square when their most-significant (or leftmost) digit is removed.
A247267
Square numbers not divisible by 100 that remain square when their most-significant (or leftmost) digit is removed.
Terms
- a(0) =1a(1) =4a(2) =9a(3) =49a(4) =64a(5) =81a(6) =225a(7) =625a(8) =1225a(9) =2025a(10) =3025a(11) =4225a(12) =5625a(13) =7225a(14) =9025a(15) =15625a(16) =27225a(17) =30625a(18) =34225a(19) =42025a(20) =50625a(21) =60025a(22) =70225a(23) =75625a(24) =81225a(25) =93025a(26) =105625a(27) =275625a(28) =330625a(29) =600625
External references
- oeis: A247267