Number T(n,k) of equivalence classes of ways of placing k 9 X 9 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=9, 0<=k<=floor(n/9)^2, read by rows.
A236936
Number T(n,k) of equivalence classes of ways of placing k 9 X 9 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=9, 0<=k<=floor(n/9)^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) =1a(11) =6a(12) =1a(13) =10a(14) =1a(15) =10a(16) =1a(17) =15a(18) =1a(19) =15a(20) =30a(21) =5a(22) =1a(23) =1a(24) =21a(25) =96a(26) =74a(27) =14a(28) =1a(29) =21
External references
- oeis: A236936