A181727 The number of paths of a chess rook in a 11D 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, 39916800, 1456812592995513600, 166369951631853645510591187200, 31707078596527364069316526441204831526400, 8089435115221815003427192379950659547969112311680000, 2492107900477900258313589438717998843635090670139189341868499200

Offset

0,2

Links

Table of n, a(n) for n=0..6.

Example

a(1) = 39916800 because there are 39916800 rook paths from (0..0) to (1..1).

Crossrefs

Row d=11 of A181731.

Sequence in context: A011522 A172539 A198809 * A307477 A218390 A186617

Adjacent sequences: A181724 A181725 A181726 * A181728 A181729 A181730

Keyword

nonn

Author

Manuel Kauers, Nov 16 2010

Extensions

a(6) from Alois P. Heinz, Jul 21 2012

Status

approved