A181752 The number of paths of a chess rook in a 7D 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).

1, 5040, 1781750880, 1224777388630320, 1139907455908263095760, 1261774625300967410997361200, 1562711749309729990152410055981840, 2093930745462011336917616846237237197680, 2973970378870521024883907518445574302750687520

Offset: 0

Author

Manuel Kauers, Nov 16 2010

Keywords

• nonn

Examples

			a(1) = 5040 because there are 5040 rook paths from (0..0) to (1..1).
		

Crossrefs

Row d=7 of A181731.