A015446 - OEIS

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A015446 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`11`
`3`		`21`
`4`		`131`
`5`		`341`
`6`		`1651`
`7`		`5061`
`8`		`21571`
`9`		`72181`
`10`		`287891`
`11`		`1009701`
`12`		`3888611`
`13`		`13985621`
`14`		`52871731`
`15`		`192727941`
`16`		`721445251`
`17`		`2648724661`
`18`		`9863177171`
`19`		`36350423781`
`20`		`134982195491`
`21`		`498486433301`
`22`		`1848308388211`
`23`		`6833172721221`

[1,1,11,21,131,341,1651,5061,21571,72181,287891, 1009701,3888611,13985621,52871731,192727941, 721445251,2648724661,9863177171,36350423781, 134982195491,498486433301,1848308388211, 6833172721221]

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Last modified April 23 02:14 EDT 2024. Contains 371906 sequences. (Running on oeis4.)