Number of configurations of a variant of the 3-dimensional 3 X 3 X 3 sliding cube puzzle that require a minimum of n moves to be reached, starting with the empty space at mid-edge of one of the 12 edges of the combination cube.
A090578
Number of configurations of a variant of the 3-dimensional 3 X 3 X 3 sliding cube puzzle that require a minimum of n moves to be reached, starting with the empty space at mid-edge of one of the 12 edges of the combination cube.
Terms
- a(0) =1a(1) =4a(2) =10a(3) =30a(4) =74a(5) =222a(6) =546a(7) =1628a(8) =3978a(9) =11810a(10) =28658a(11) =84520a(12) =203562a(13) =596520a(14) =1425924a(15) =4150232a(16) =9838116a(17) =28418002a(18) =66805554
External references
- oeis: A090578