Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p_1, p_2, p_3, p_4} = {-1,0,1,2}, n=3*r+p_i, and define a(-1)=0. Then a(n)=a(3*r+p_i) gives the quantity of H_(9,3,0) tiles in a subdivided H_(9,i,r) tile after linear scaling by the factor Q^r, where Q=sqrt(x^3-2*x) with x=2*cos(Pi/9).

A187505

Let i be in {1,2,3,4} and let r >= 0 be an integer. Let p = {p_1, p_2, p_3, p_4} = {-1,0,1,2}, n=3*r+p_i, and define a(-1)=0. Then a(n)=a(3*r+p_i) gives the quantity of H_(9,3,0) tiles in a subdivided H_(9,i,r) tile after linear scaling by the factor Q^r, where Q=sqrt(x^3-2*x) with x=2*cos(Pi/9).

Terms

    a(0) =0a(1) =1a(2) =0a(3) =1a(4) =1a(5) =1a(6) =2a(7) =3a(8) =3a(9) =6a(10) =8a(11) =9a(12) =17a(13) =23a(14) =26a(15) =49a(16) =66a(17) =75a(18) =141a(19) =190a(20) =216a(21) =406a(22) =547a(23) =622a(24) =1169a(25) =1575a(26) =1791a(27) =3366a(28) =4535a(29) =5157

External references