A027498 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A027498 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`2`
`5`		`3`
`6`		`156`
`7`		`11310`
`8`		`330629`
`9`		`152089340`
`10`		`643246654596`
`11`		`35524062269891`
`12`		`337477881082719102180`
`13`		`109384291330500150829872420`
`14`		`86955035326335082936056844350`
`15`		`544579423437617936776185666967483770498`
`16`		`1506261534148454000219791441278411835118056010820`

[1,1,2,2,3,156,11310,330629,152089340, 643246654596,35524062269891,337477881082719102180, 109384291330500150829872420, 86955035326335082936056844350, 544579423437617936776185666967483770498, 1506261534148454000219791441278411835118056010820]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)