A089976 - OEIS

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A089976 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`8`
`5`		`20`
`6`		`52`
`7`		`146`
`8`		`458`
`9`		`1498`
`10`		`5240`
`11`		`19562`
`12`		`76006`
`13`		`311258`
`14`		`1334108`
`15`		`5931250`
`16`		`27492122`
`17`		`132096626`
`18`		`655783888`
`19`		`3368747018`
`20`		`17837850110`
`21`		`97228103482`
`22`		`545514383396`
`23`		`3142793126018`
`24`		`18578114240578`
`25`		`112620106745570`
`26`		`698987455899992`
`27`		`4439420959115866`
`28`		`28832596784976998`
`29`		`191284437539842538`

[1,1,2,4,8,20,52,146,458,1498,5240,19562,76006, 311258,1334108,5931250,27492122,132096626, 655783888,3368747018,17837850110,97228103482, 545514383396,3142793126018,18578114240578, 112620106745570,698987455899992,4439420959115866, 28832596784976998,191284437539842538]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)