A001267 as tables, graphs or sounds

A001267 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`1`
`5`		`8`
`6`		`60`
`7`		`444`
`8`		`3599`
`9`		`32484`
`10`		`325322`
`11`		`3582600`
`12`		`43029621`
`13`		`559774736`
`14`		`7841128936`
`15`		`117668021988`
`16`		`1883347579515`
`17`		`32026067455084`
`18`		`576605574327174`
`19`		`10957672400252944`
`20`		`219190037987444577`
`21`		`4603645435776504120`
`22`		`101292568208941883236`
`23`		`2329975164242735146316`

[0,0,0,0,1,8,60,444,3599,32484,325322,3582600, 43029621,559774736,7841128936,117668021988, 1883347579515,32026067455084,576605574327174, 10957672400252944,219190037987444577, 4603645435776504120,101292568208941883236, 2329975164242735146316]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research