A020053 - OEIS

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A020053 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`2`
`4`		`9`
`5`		`46`
`6`		`260`
`7`		`1731`
`8`		`13220`
`9`		`114177`
`10`		`1100259`
`11`		`11702761`
`12`		`136177584`
`13`		`1720789475`
`14`		`23465311032`
`15`		`343446825119`
`16`		`5370259447316`
`17`		`89341588987179`
`18`		`1575660751228445`
`19`		`29364586727439203`
`20`		`576613703011533457`

[1,0,1,2,9,46,260,1731,13220,114177,1100259, 11702761,136177584,1720789475,23465311032, 343446825119,5370259447316,89341588987179, 1575660751228445,29364586727439203, 576613703011533457]

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Last modified April 24 13:41 EDT 2024. Contains 371957 sequences. (Running on oeis4.)