Squares which leave a square at every step if most significant digit and least significant digit are deleted until a one-digit or two-digit square is obtained.
A077487
Squares which leave a square at every step if most significant digit and least significant digit are deleted until a one-digit or two-digit square is obtained.
Terms
- a(0) =1a(1) =4a(2) =9a(3) =16a(4) =25a(5) =36a(6) =49a(7) =64a(8) =81a(9) =100a(10) =144a(11) =196a(12) =400a(13) =441a(14) =841a(15) =900a(16) =1369a(17) =3364a(18) =4096a(19) =5041a(20) =8649a(21) =10000a(22) =10816a(23) =11449a(24) =20164a(25) =38416a(26) =40000a(27) =61009a(28) =64009a(29) =90000
External references
- oeis: A077487