A037648 - OEIS

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A037648 as a simple table

`n`		`a(n)`
`1`		`3`
`2`		`18`
`3`		`109`
`4`		`657`
`5`		`3942`
`6`		`23653`
`7`		`141921`
`8`		`851526`
`9`		`5109157`
`10`		`30654945`
`11`		`183929670`
`12`		`1103578021`
`13`		`6621468129`
`14`		`39728808774`
`15`		`238372852645`
`16`		`1430237115873`
`17`		`8581422695238`
`18`		`51488536171429`
`19`		`308931217028577`
`20`		`1853587302171462`

[3,18,109,657,3942,23653,141921,851526,5109157, 30654945,183929670,1103578021,6621468129, 39728808774,238372852645,1430237115873, 8581422695238,51488536171429,308931217028577, 1853587302171462]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)