A007660 - OEIS

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A007660 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`2`
`5`		`3`
`6`		`7`
`7`		`22`
`8`		`155`
`9`		`3411`
`10`		`528706`
`11`		`1803416167`
`12`		`953476947989903`
`13`		`1719515742866809222961802`
`14`		`1639518622529236077952144318816050685207`
`15`		`2819178082162327154499022366029959843954512194276761760087463015`

[0,0,1,1,2,3,7,22,155,3411,528706,1803416167, 953476947989903,1719515742866809222961802, 1639518622529236077952144318816050685207, 28191780821623271544990223660299598439545121942767\ 61760087463015]

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Last modified May 10 01:03 EDT 2024. Contains 372354 sequences. (Running on oeis4.)