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A108863 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`1`
`4`		`5`
`5`		`21`
`6`		`78`
`7`		`274`
`8`		`927`
`9`		`3061`
`10`		`9933`
`11`		`31824`
`12`		`100972`
`13`		`317942`
`14`		`995088`
`15`		`3099105`
`16`		`9612735`
`17`		`29715525`
`18`		`91595391`
`19`		`281643480`
`20`		`864189486`
`21`		`2646805668`
`22`		`8093543439`
`23`		`24713953515`
`24`		`75370741506`
`25`		`229604257846`
`26`		`698754428388`
`27`		`2124616182139`

[0,0,0,1,5,21,78,274,927,3061,9933,31824,100972, 317942,995088,3099105,9612735,29715525,91595391, 281643480,864189486,2646805668,8093543439, 24713953515,75370741506,229604257846,698754428388, 2124616182139]

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Last modified September 12 03:03 EDT 2024. Contains 375842 sequences. (Running on oeis4.)