Number of distinct chess positions after n plies including differences due to availability and possibility of castling and en passant captures.
A083276
Number of distinct chess positions after n plies including differences due to availability and possibility of castling and en passant captures.
Terms
- a(0) =1a(1) =20a(2) =400a(3) =5362a(4) =72078a(5) =822518a(6) =9417681a(7) =96400068a(8) =988187354a(9) =9183421888a(10) =85375278064a(11) =726155461002
External references
- oeis: A083276