A020981 - OEIS

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A020981 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`31`
`2`		`645`
`3`		`11255`
`4`		`177821`
`5`		`2636991`
`6`		`37440565`
`7`		`515147335`
`8`		`6923011341`
`9`		`91364030351`
`10`		`1188608942885`
`11`		`15286543614615`
`12`		`194762842152061`
`13`		`2462271368182111`
`14`		`30927944350627605`
`15`		`386358083836485095`

[1,31,645,11255,177821,2636991,37440565,515147335, 6923011341,91364030351,1188608942885, 15286543614615,194762842152061,2462271368182111, 30927944350627605,386358083836485095]

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Last modified April 25 05:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)