A018042 - OEIS

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A018042 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`8`
`3`		`23`
`4`		`65`
`5`		`186`
`6`		`529`
`7`		`1504`
`8`		`4278`
`9`		`12167`
`10`		`34601`
`11`		`98401`
`12`		`279841`
`13`		`795830`
`14`		`2263236`
`15`		`6436343`
`16`		`18304103`
`17`		`52054435`
`18`		`148035889`
`19`		`420994376`
`20`		`1197252006`
`21`		`3404825447`
`22`		`9682870660`
`23`		`27536796142`
`24`		`78310985281`
`25`		`222706025200`
`26`		`633346311281`
`27`		`1801152661463`
`28`		`5122238579606`

[1,2,8,23,65,186,529,1504,4278,12167,34601,98401, 279841,795830,2263236,6436343,18304103,52054435, 148035889,420994376,1197252006,3404825447, 9682870660,27536796142,78310985281,222706025200, 633346311281,1801152661463,5122238579606]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)