login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A027686 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 9
5 98
6 2981
7 340549
8 216569887
9 994441978397
10 36812710172987995
11 12001387004225881846755
12 37783429241635794906272195147
13 1255674108542254217846031366276646429
14 478743486470659944952229546087586449114251007
15 2262324605850021060149051111359520226936424091385392945

[1,1,1,2,9,98,2981,340549,216569887,994441978397,
 36812710172987995,12001387004225881846755,
 37783429241635794906272195147,
 1255674108542254217846031366276646429,
 478743486470659944952229546087586449114251007,
 22623246058500210601490511113595202269364240913853\
 92945]

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 2 02:53 EDT 2021. Contains 346409 sequences. (Running on oeis4.)