A171906 a(n) = number of 5 X 5 permutation matrices with trace n

44, 45, 20, 10, 0, 1

Offset

0,1

Links

Table of n, a(n) for n=0..5.

Example

a(0)=44 because we have 44 different permutation matrices 5 x 5 with trace 0.

Crossrefs

A171806, A171808, A171809, A171907, A171908

Sequence in context: A109644 A165865 A239534 * A059070 A059071 A085519

Adjacent sequences: A171903 A171904 A171905 * A171907 A171908 A171909

Keyword

nonn

Author

Artur Jasinski, Dec 31 2009

Status

approved