Number of configurations of the 6 X 6 variant of Sam Loyd's sliding block 15-puzzle ("35-puzzle") that require a minimum of n moves to be reached, starting with the empty square in one of the corners.

A090032

Number of configurations of the 6 X 6 variant of Sam Loyd's sliding block 15-puzzle ("35-puzzle") that require a minimum of n moves to be reached, starting with the empty square in one of the corners.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =10a(4) =26a(5) =66a(6) =171a(7) =440a(8) =1112a(9) =2786a(10) =6820a(11) =16720a(12) =41106a(13) =100856a(14) =245793a(15) =597030a(16) =1441292a(17) =3469486a(18) =8304526a(19) =19832076a(20) =47110238a(21) =111669014

External references