Number of chess games with n plies (another version).
A007545
Number of chess games with n plies (another version).
Terms
- a(0) =1a(1) =20a(2) =400a(3) =8902a(4) =197742a(5) =4897256a(6) =120921506a(7) =3284294545a(8) =88867026005
External references
- oeis: A007545