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!)

A128680 as a simple table

n a(n)
1 1
2 7
3 203
4 1379
5 11977
6 39991
7 577129
8 2359469
9 4780447
10 6521291
11 6640739
12 9904979
13 21511301
14 28434413
15 34050611
16 113694413
17 189117439
18 222281549
19 250163599
20 282046373
21 391803601
22 941748059
23 1269166759
24 1308225583

[1,7,203,1379,11977,39991,577129,2359469,4780447,
 6521291,6640739,9904979,21511301,28434413,
 34050611,113694413,189117439,222281549,250163599,
 282046373,391803601,941748059,1269166759,
 1308225583]

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 June 6 22:00 EDT 2024. Contains 373134 sequences. (Running on oeis4.)