A097690 - OEIS

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

A097690 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`21`
`4`		`209`
`5`		`2640`
`6`		`40391`
`7`		`726103`
`8`		`15003009`
`9`		`350382231`
`10`		`9127651499`
`11`		`262424759520`
`12`		`8254109243953`
`13`		`281944946167261`
`14`		`10393834843080975`
`15`		`411313439034311505`
`16`		`17391182043967249409`
`17`		`782469083251377707328`

[1,3,21,209,2640,40391,726103,15003009,350382231, 9127651499,262424759520,8254109243953, 281944946167261,10393834843080975, 411313439034311505,17391182043967249409, 782469083251377707328]

License Agreements, Terms of Use, Privacy Policy. .

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