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!)

A172220 as a simple table

n a(n)
1 1
2 28
3 157
4 1248
5 4650
6 15162
7 37988
8 86958
9 181423
10 351708
11 648441
12 1127392
13 1874194
14 2988466
15 4602096
16 6870240
17 9983347
18 14163972
19 19672403
20 26812260
21 35929480
22 47418482
23 61723238
24 79341720
25 100828175
26 126796852
27 157924785

[1,28,157,1248,4650,15162,37988,86958,181423,
 351708,648441,1127392,1874194,2988466,4602096,
 6870240,9983347,14163972,19672403,26812260,
 35929480,47418482,61723238,79341720,100828175,
 126796852,157924785]

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 April 16 14:51 EDT 2024. Contains 371749 sequences. (Running on oeis4.)