A074621 - OEIS

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

A074621 as a simple table

`n`		`a(n)`
`0`		`2`
`1`		`15`
`2`		`117`
`3`		`945`
`4`		`7857`
`5`		`66825`
`6`		`578097`
`7`		`5062905`
`8`		`44726337`
`9`		`397498185`
`10`		`3547250577`
`11`		`31743856665`
`12`		`284606318817`
`13`		`2554926522345`
`14`		`22955156619057`
`15`		`206361317079225`
`16`		`1855841298759297`
`17`		`16694108359111305`
`18`		`150196195253667537`

[2,15,117,945,7857,66825,578097,5062905,44726337, 397498185,3547250577,31743856665,284606318817, 2554926522345,22955156619057,206361317079225, 1855841298759297,16694108359111305, 150196195253667537]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 18 13:50 EDT 2024. Contains 371780 sequences. (Running on oeis4.)