A121881 - OEIS

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A121881 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`5`
`6`		`21`
`7`		`109`
`8`		`2621`
`9`		`46409`
`10`		`1290665`
`11`		`143900249`
`12`		`10827502009`
`13`		`1650671059149`
`14`		`826986635160509`
`15`		`267834927512726725`
`16`		`226491424023176449909`
`17`		`497347467521206399078801`
`18`		`706331193237960728379843409`

[1,1,1,1,5,21,109,2621,46409,1290665,143900249, 10827502009,1650671059149,826986635160509, 267834927512726725,226491424023176449909, 497347467521206399078801, 706331193237960728379843409]

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Last modified May 4 16:04 EDT 2024. Contains 372254 sequences. (Running on oeis4.)