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

 

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

A220284 as a simple table

n a(n)
1 4
2 31
3 139
4 1411
5 9430
6 63154
7 452515
8 3130768
9 21630714
10 150540232
11 1043064746
12 7226190511
13 50094800811
14 347052655839
15 2404198149909
16 16655726484462
17 115373519626103
18 799165840938429
19 5535587924914620
20 38342402997836989

[4,31,139,1411,9430,63154,452515,3130768,21630714,
 150540232,1043064746,7226190511,50094800811,
 347052655839,2404198149909,16655726484462,
 115373519626103,799165840938429,5535587924914620,
 38342402997836989]

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 May 19 05:04 EDT 2022. Contains 353826 sequences. (Running on oeis4.)