A275863 - OEIS

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A275863 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`12`
`4`		`40`
`5`		`130`
`6`		`425`
`7`		`1387`
`8`		`4529`
`9`		`14789`
`10`		`48294`
`11`		`157707`
`12`		`515002`
`13`		`1681772`
`14`		`5491935`
`15`		`17934267`
`16`		`58565504`
`17`		`191249427`
`18`		`624537327`
`19`		`2039466884`
`20`		`6660010527`
`21`		`21748693527`
`22`		`71021760134`
`23`		`231926134152`
`24`		`757369735715`
`25`		`2473239674667`
`26`		`8076523525954`
`27`		`26374408001552`

[1,1,4,12,40,130,425,1387,4529,14789,48294,157707, 515002,1681772,5491935,17934267,58565504, 191249427,624537327,2039466884,6660010527, 21748693527,71021760134,231926134152,757369735715, 2473239674667,8076523525954,26374408001552]

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Last modified April 19 02:45 EDT 2024. Contains 371782 sequences. (Running on oeis4.)