Number T(n,k) of equivalence classes of ways of placing k 4 X 4 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=4, 0<=k<=floor(n/4)^2, read by rows.
A236757
Number T(n,k) of equivalence classes of ways of placing k 4 X 4 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=4, 0<=k<=floor(n/4)^2, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =1a(7) =3a(8) =1a(9) =6a(10) =9a(11) =3a(12) =1a(13) =1a(14) =6a(15) =29a(16) =35a(17) =14a(18) =1a(19) =10a(20) =75a(21) =209a(22) =174a(23) =1a(24) =10a(25) =147a(26) =765a(27) =1234a(28) =1a(29) =15
External references
- oeis: A236757