A251684 - OEIS

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

A251684 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`5`
`3`		`16`
`4`		`69`
`5`		`426`
`6`		`3947`
`7`		`55612`
`8`		`1177747`
`9`		`36816650`
`10`		`1676270109`
`11`		`110202314208`
`12`		`10408422663015`
`13`		`1407329003121294`
`14`		`271801891072128621`
`15`		`74846096423770137324`
`16`		`29351301902680241116593`
`17`		`16374214768286861089202358`
`18`		`12985582377076992552497257703`
`19`		`14629438237685095017820000611400`

[1,2,5,16,69,426,3947,55612,1177747,36816650, 1676270109,110202314208,10408422663015, 1407329003121294,271801891072128621, 74846096423770137324,29351301902680241116593, 16374214768286861089202358, 12985582377076992552497257703, 14629438237685095017820000611400]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 9 00:38 EDT 2024. Contains 372341 sequences. (Running on oeis4.)