A081054 - OEIS

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

A081054 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`4`
`4`		`31`
`5`		`288`
`6`		`3272`
`7`		`43580`
`8`		`666143`
`9`		`11491696`
`10`		`220875237`
`11`		`4681264432`
`12`		`108475235444`
`13`		`2728591657920`
`14`		`74051386322580`
`15`		`2156865088819692`
`16`		`67113404608820943`
`17`		`2221948578439255200`
`18`		`77990056655776149179`

[1,0,1,4,31,288,3272,43580,666143,11491696, 220875237,4681264432,108475235444,2728591657920, 74051386322580,2156865088819692,67113404608820943, 2221948578439255200,77990056655776149179]

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 27 13:58 EDT 2024. Contains 375469 sequences. (Running on oeis4.)