A062415 - OEIS

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

A062415 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`1`
`4`		`2`
`5`		`6`
`6`		`18`
`7`		`54`
`8`		`168`
`9`		`543`
`10`		`1819`
`11`		`6284`
`12`		`22305`
`13`		`81085`
`14`		`301185`
`15`		`1140759`
`16`		`4398268`
`17`		`17237268`
`18`		`68582448`
`19`		`276723505`
`20`		`1131245762`
`21`		`4681484414`
`22`		`19597666672`
`23`		`82933899715`
`24`		`354575503930`
`25`		`1530739734801`
`26`		`6669583434025`
`27`		`29316248173094`

[1,0,1,2,6,18,54,168,543,1819,6284,22305,81085, 301185,1140759,4398268,17237268,68582448, 276723505,1131245762,4681484414,19597666672, 82933899715,354575503930,1530739734801, 6669583434025,29316248173094]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)