A020127 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A020127 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`16`
`5`		`74`
`6`		`427`
`7`		`2901`
`8`		`22625`
`9`		`199095`
`10`		`1951128`
`11`		`21072176`
`12`		`248651669`
`13`		`3182741352`
`14`		`43921830648`
`15`		`650043093589`
`16`		`10270680878694`
`17`		`172547438762056`
`18`		`3071344409964595`
`19`		`57741274907334371`
`20`		`1143277243165220534`

[1,1,2,5,16,74,427,2901,22625,199095,1951128, 21072176,248651669,3182741352,43921830648, 650043093589,10270680878694,172547438762056, 3071344409964595,57741274907334371, 1143277243165220534]

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 8 11:24 EDT 2024. Contains 375753 sequences. (Running on oeis4.)