Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X 10 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=2, 0<=k<=5*floor(n/2), read by rows.

A238586

Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X 10 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=2, 0<=k<=5*floor(n/2), read by rows.

Terms

    a(0) =1a(1) =5a(2) =16a(3) =19a(4) =9a(5) =1a(6) =1a(7) =5a(8) =32a(9) =73a(10) =66a(11) =10a(12) =1a(13) =10a(14) =85a(15) =377a(16) =961a(17) =1348a(18) =1080a(19) =472a(20) =111a(21) =12a(22) =1a(23) =1a(24) =10a(25) =142a(26) =1011a(27) =4429a(28) =11370a(29) =17252

External references