A145780 - OEIS

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

A145780 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`5`
`4`		`18`
`5`		`70`
`6`		`523`
`7`		`4956`
`8`		`70926`
`9`		`1300201`
`10`		`37116376`
`11`		`1354115636`
`12`		`76887328413`
`13`		`5596162598050`
`14`		`631149201335604`
`15`		`91196507989935319`
`16`		`20473605176808584691`
`17`		`5885534752273786907540`
`18`		`2626715298620574785397735`

[1,1,5,18,70,523,4956,70926,1300201,37116376, 1354115636,76887328413,5596162598050, 631149201335604,91196507989935319, 20473605176808584691,5885534752273786907540, 2626715298620574785397735]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 18 10:28 EDT 2024. Contains 371779 sequences. (Running on oeis4.)