A161742 as tables, graphs or sounds

A161742 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`4`
`4`		`13`
`5`		`30`
`6`		`-14`
`7`		`-504`
`8`		`736`
`9`		`44640`
`10`		`-104544`
`11`		`-10644480`
`12`		`33246720`
`13`		`5425056000`
`14`		`-20843695872`
`15`		`-5185511654400`
`16`		`23457840537600`
`17`		`8506857655296000`
`18`		`-44092609863966720`
`19`		`-22430879475779174400`
`20`		`130748316971139072000`

[1,4,13,30,-14,-504,736,44640,-104544,-10644480, 33246720,5425056000,-20843695872,-5185511654400, 23457840537600,8506857655296000, -44092609863966720,-22430879475779174400, 130748316971139072000]

Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research