A005490 - OEIS

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A005490 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`13`
`4`		`44`
`5`		`163`
`6`		`666`
`7`		`2985`
`8`		`14550`
`9`		`76497`
`10`		`430746`
`11`		`2582447`
`12`		`16403028`
`13`		`109918745`
`14`		`774289168`
`15`		`5715471605`
`16`		`44087879136`
`17`		`354521950931`
`18`		`2965359744446`
`19`		`25749723493073`
`20`		`231719153184018`
`21`		`2157494726318233`
`22`		`20753996174222510`
`23`		`205985762120971167`
`24`		`2106795754056142536`

[1,4,13,44,163,666,2985,14550,76497,430746, 2582447,16403028,109918745,774289168,5715471605, 44087879136,354521950931,2965359744446, 25749723493073,231719153184018,2157494726318233, 20753996174222510,205985762120971167, 2106795754056142536]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)