A219422 - OEIS

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A219422 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`7`
`3`		`20`
`4`		`57`
`5`		`160`
`6`		`454`
`7`		`1292`
`8`		`3676`
`9`		`10452`
`10`		`29724`
`11`		`84548`
`12`		`240480`
`13`		`683968`
`14`		`1945348`
`15`		`5533040`
`16`		`15737260`
`17`		`44760324`
`18`		`127308564`
`19`		`362094824`
`20`		`1029880752`
`21`		`2929216636`
`22`		`8331363064`
`23`		`23696305892`
`24`		`67397723860`
`25`		`191694568548`
`26`		`545223274608`

[1,7,20,57,160,454,1292,3676,10452,29724,84548, 240480,683968,1945348,5533040,15737260,44760324, 127308564,362094824,1029880752,2929216636, 8331363064,23696305892,67397723860,191694568548, 545223274608]

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Last modified April 25 11:35 EDT 2024. Contains 371968 sequences. (Running on oeis4.)