Number of distinct solutions to reverse the 8 puzzle (3 X 3 analog of the 4 X 4 15 puzzle) in 28, 30, 32, ... moves.
A046164
Number of distinct solutions to reverse the 8 puzzle (3 X 3 analog of the 4 X 4 15 puzzle) in 28, 30, 32, ... moves.
Terms
- a(0) =0a(1) =10a(2) =112a(3) =512a(4) =2138a(5) =7676a(6) =26034a(7) =87388a(8) =283436a(9) =910035
External references
- oeis: A046164