A009940 - OEIS

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A009940 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`-1`
`3`		`-4`
`4`		`-15`
`5`		`-56`
`6`		`-185`
`7`		`-204`
`8`		`6209`
`9`		`112400`
`10`		`1520271`
`11`		`19165420`
`12`		`237686449`
`13`		`2944654296`
`14`		`36392001815`
`15`		`441823808804`
`16`		`5066513855745`
`17`		`49021548330016`
`18`		`202510138910239`
`19`		`-8592616658156580`
`20`		`-399625593156546319`

[1,0,-1,-4,-15,-56,-185,-204,6209,112400,1520271, 19165420,237686449,2944654296,36392001815, 441823808804,5066513855745,49021548330016, 202510138910239,-8592616658156580, -399625593156546319]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)