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!)

A026967 as a simple table

n a(n)
1 1
2 4
3 24
4 90
5 365
6 1376
7 5272
8 20098
9 77016
10 295836
11 1139834
12 4402490
13 17042341
14 66101848
15 256838544
16 999512058
17 3895191476
18 15199297796
19 59377405654
20 232208188726
21 908978576496
22 3561356276424
23 13964734085774
24 54799750800530
25 215193550759630
26 845596666261036

[1,4,24,90,365,1376,5272,20098,77016,295836,
 1139834,4402490,17042341,66101848,256838544,
 999512058,3895191476,15199297796,59377405654,
 232208188726,908978576496,3561356276424,
 13964734085774,54799750800530,215193550759630,
 845596666261036]

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 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)