A219868 - OEIS

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

A219868 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`15`
`3`		`143`
`4`		`1069`
`5`		`9612`
`6`		`82634`
`7`		`707903`
`8`		`6155230`
`9`		`53074167`
`10`		`458901955`
`11`		`3968548571`
`12`		`34293794622`
`13`		`296497719200`
`14`		`2563023778341`
`15`		`22155553744380`
`16`		`191528023181443`
`17`		`1655649630655481`
`18`		`14312296720331975`
`19`		`123722938782920490`
`20`		`1069522524403416934`
`21`		`9245501816227527991`

[1,2,15,143,1069,9612,82634,707903,6155230, 53074167,458901955,3968548571,34293794622, 296497719200,2563023778341,22155553744380, 191528023181443,1655649630655481, 14312296720331975,123722938782920490, 1069522524403416934,9245501816227527991]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)