Squares whose external digits (MSD and LSD) form a square. Or squares from which deleting the internal digits leaves a square.
A077356
Squares whose external digits (MSD and LSD) form a square. Or squares from which deleting the internal digits leaves a square.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =9a(4) =16a(5) =25a(6) =36a(7) =49a(8) =64a(9) =81a(10) =196a(11) =225a(12) =841a(13) =1156a(14) =1296a(15) =1936a(16) =2025a(17) =3136a(18) =4489a(19) =6084a(20) =6724a(21) =8281a(22) =10816a(23) =11236a(24) =12996a(25) =13456a(26) =15376a(27) =15876a(28) =17956a(29) =18496
External references
- oeis: A077356