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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A220677 as a simple table

n a(n)
1 1
2 25
3 201
4 2024
5 21380
6 220299
7 2316754
8 24198121
9 253601977
10 2654925237
11 27806859021
12 291197368229
13 3049635082130
14 31937451907839
15 334468779079214
16 3502756567542222
17 36682984009174381
18 384166287213883140

[1,25,201,2024,21380,220299,2316754,24198121,
 253601977,2654925237,27806859021,291197368229,
 3049635082130,31937451907839,334468779079214,
 3502756567542222,36682984009174381,
 384166287213883140]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 1 22:50 EST 2022. Contains 358485 sequences. (Running on oeis4.)