A067647 - OEIS

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A067647 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`2`
`2`		`4`
`3`		`18`
`4`		`108`
`5`		`748`
`6`		`5648`
`7`		`45234`
`8`		`378300`
`9`		`3271204`
`10`		`29049824`
`11`		`263656356`
`12`		`2436827328`
`13`		`22871937208`
`14`		`217536523260`
`15`		`2092958991474`
`16`		`20341256951692`
`17`		`199471121367508`
`18`		`1971730006936240`
`19`		`19630246152650228`

[0,2,4,18,108,748,5648,45234,378300,3271204, 29049824,263656356,2436827328,22871937208, 217536523260,2092958991474,20341256951692, 199471121367508,1971730006936240, 19630246152650228]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)