A211497 - OEIS

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A211497 as a simple table

`n`		`a(n)`
`1`		`40`
`2`		`180`
`3`		`808`
`4`		`3636`
`5`		`16396`
`6`		`74104`
`7`		`335660`
`8`		`1523420`
`9`		`6925768`
`10`		`31527492`
`11`		`143656108`
`12`		`654965928`
`13`		`2986993420`
`14`		`13622286844`
`15`		`62110476152`
`16`		`283072002980`
`17`		`1289383564204`
`18`		`5869109209272`
`19`		`26695147549612`
`20`		`121321864635996`
`21`		`550906942638568`

[40,180,808,3636,16396,74104,335660,1523420, 6925768,31527492,143656108,654965928,2986993420, 13622286844,62110476152,283072002980, 1289383564204,5869109209272,26695147549612, 121321864635996,550906942638568]

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Last modified June 30 18:52 EDT 2022. Contains 354945 sequences. (Running on oeis4.)