A180388 - OEIS

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

A180388 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`2`
`5`		`24`
`6`		`228`
`7`		`2088`
`8`		`19732`
`9`		`197890`
`10`		`2131060`
`11`		`24729108`
`12`		`309027560`
`13`		`4148115048`
`14`		`59611031304`
`15`		`913915160628`
`16`		`14897443573244`
`17`		`257369478424890`
`18`		`4698494631208500`
`19`		`90393611677083892`
`20`		`1828153614233855024`
`21`		`38778554791649355232`
`22`		`860921156414834534368`

[0,0,0,0,2,24,228,2088,19732,197890,2131060, 24729108,309027560,4148115048,59611031304, 913915160628,14897443573244,257369478424890, 4698494631208500,90393611677083892, 1828153614233855024,38778554791649355232, 860921156414834534368]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 6 18:59 EDT 2024. Contains 372297 sequences. (Running on oeis4.)