A013421 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A013421 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`3`
`4`		`0`
`5`		`-7`
`6`		`90`
`7`		`497`
`8`		`-1176`
`9`		`10649`
`10`		`185094`
`11`		`955757`
`12`		`530772`
`13`		`167741741`
`14`		`1636156522`
`15`		`18092867249`
`16`		`170829306928`
`17`		`6069742560593`
`18`		`60742435952974`
`19`		`1368824205107477`
`20`		`18173279227072940`
`21`		`584561380993184597`

[1,0,0,3,0,-7,90,497,-1176,10649,185094,955757, 530772,167741741,1636156522,18092867249, 170829306928,6069742560593,60742435952974, 1368824205107477,18173279227072940, 584561380993184597]

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 18 17:38 EDT 2024. Contains 374388 sequences. (Running on oeis4.)