Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X 8 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=2, 0<=k<=4*floor(n/2), read by rows.
A238557
Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X 8 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=2, 0<=k<=4*floor(n/2), read by rows.
Terms
- a(0) =1a(1) =4a(2) =9a(3) =6a(4) =1a(5) =1a(6) =4a(7) =18a(8) =22a(9) =6a(10) =1a(11) =8a(12) =49a(13) =139a(14) =204a(15) =145a(16) =54a(17) =8a(18) =1a(19) =1a(20) =8a(21) =83a(22) =392a(23) =1056a(24) =1438a(25) =956a(26) =240a(27) =25a(28) =1a(29) =12
External references
- oeis: A238557