The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)

A162480 as a simple table

n a(n)
0 1
1 4
2 21
3 126
4 797
5 5190
6 34439
7 231556
8 1572135
9 10754148
10 74001735
11 511686726
12 3552251429
13 24743806370
14 172853699427
15 1210514603212
16 8495774193707
17 59739915525288
18 420785972800187
19 2968344133842182
20 20967995689677183

[1,4,21,126,797,5190,34439,231556,1572135,
 10754148,74001735,511686726,3552251429,
 24743806370,172853699427,1210514603212,
 8495774193707,59739915525288,420785972800187,
 2968344133842182,20967995689677183]

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 28 16:48 EDT 2024. Contains 372916 sequences. (Running on oeis4.)