A181724 - cp's OEIS frontend

A181724 The number of paths of a chess rook in a 8D hypercube, from (0..0) to (n..n), where the rook may move in steps that are multiples of (1,0..0), (0,1,0..0), ..., (0..0,1).

%I A181724 #7 Jul 21 2012 19:05:17
%S A181724 1,40320,214899027840,2509137924026751360,41795104403987233709518080,
%T A181724 852847938704373386478865686645120,
%U A181724 19846219244619878972245087341015659057280,506348195597089273505079176351561351976609740160
%N A181724 The number of paths of a chess rook in a 8D hypercube, from (0..0) to (n..n), where the rook may move in steps that are multiples of (1,0..0), (0,1,0..0), ..., (0..0,1).
%e A181724 a(1) = 40320 because there are 40320 rook paths from (0..0) to (1..1).
%Y A181724 Row d=8 of A181731.
%K A181724 nonn
%O A181724 0,2
%A A181724 _Manuel Kauers_, Nov 16 2010

cp's OEIS Frontend

A181724 The number of paths of a chess rook in a 8D hypercube, from (0..0) to (n..n), where the rook may move in steps that are multiples of (1,0..0), (0,1,0..0), ..., (0..0,1).