A026163 - OEIS

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A026163 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`16`
`5`		`45`
`6`		`126`
`7`		`356`
`8`		`1008`
`9`		`2862`
`10`		`8140`
`11`		`23188`
`12`		`66144`
`13`		`188916`
`14`		`540216`
`15`		`1546560`
`16`		`4432512`
`17`		`12717513`
`18`		`36526626`
`19`		`105016686`
`20`		`302228080`
`21`		`870613689`
`22`		`2510249302`
`23`		`7244285436`
`24`		`20924179920`
`25`		`60487084775`
`26`		`174994990326`
`27`		`506669921982`

[1,2,6,16,45,126,356,1008,2862,8140,23188,66144, 188916,540216,1546560,4432512,12717513,36526626, 105016686,302228080,870613689,2510249302, 7244285436,20924179920,60487084775,174994990326, 506669921982]

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Last modified January 16 09:13 EST 2021. Contains 340204 sequences. (Running on oeis4.)