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!)

A209221 as a simple table

n a(n)
1 15
2 225
3 240
4 504
5 900
6 1776
7 3456
8 6300
9 12656
10 24124
11 45276
12 88400
13 170280
14 323760
15 618496
16 1202400
17 2300200
18 4360824
19 8464860
20 16284576
21 30897024
22 59537156
23 115023968
24 219164204
25 419459908
26 811024296
27 1553149080
28 2962595040

[15,225,240,504,900,1776,3456,6300,12656,24124,
 45276,88400,170280,323760,618496,1202400,2300200,
 4360824,8464860,16284576,30897024,59537156,
 115023968,219164204,419459908,811024296,
 1553149080,2962595040]

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 14 20:17 EDT 2024. Contains 372533 sequences. (Running on oeis4.)