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!)

A223639 as a simple table

n a(n)
1 7
2 49
3 218
4 726
5 2014
6 4904
7 10797
8 21917
9 41601
10 74635
11 127636
12 209480
13 331776
14 509386
15 760991
16 1109703
17 1583723
18 2217045
19 3050206
20 4131082
21 5515730
22 7269276
23 9466849
24 12194561
25 15550533
26 19645967
27 24606264
28 30572188
29 37701076
30 46168094

[7,49,218,726,2014,4904,10797,21917,41601,74635,
 127636,209480,331776,509386,760991,1109703,
 1583723,2217045,3050206,4131082,5515730,7269276,
 9466849,12194561,15550533,19645967,24606264,
 30572188,37701076,46168094]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 16 18:17 EST 2022. Contains 350376 sequences. (Running on oeis4.)