Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=2, 0<=k<=floor(n/2)^2, read by rows.
A236679
Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=2, 0<=k<=floor(n/2)^2, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =4a(7) =2a(8) =1a(9) =1a(10) =3a(11) =13a(12) =20a(13) =14a(14) =1a(15) =6a(16) =37a(17) =138a(18) =277a(19) =273a(20) =143a(21) =39a(22) =7a(23) =1a(24) =1a(25) =6a(26) =75a(27) =505a(28) =2154a(29) =5335
External references
- oeis: A236679