A013420 as tables, graphs or sounds

A013420 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`40`
`4`		`0`
`5`		`108000`
`6`		`1232000`
`7`		`1647734400`
`8`		`57657600000`
`9`		`85927162048000`
`10`		`6053574009600000`
`11`		`11452742596189440000`
`12`		`1349295190949488640000`
`13`		`3261229190521061760000000`
`14`		`577775664177165642240000000`

[1,0,0,40,0,108000,1232000,1647734400,57657600000, 85927162048000,6053574009600000, 11452742596189440000,1349295190949488640000, 3261229190521061760000000, 577775664177165642240000000]

Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research