login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)

A268069 as a simple table

n a(n)
1 1
2 2
3 4
4 12
5 39
6 138
7 499
8 1830
9 6723
10 24714
11 90751
12 332910
13 1219947
14 4466562
15 16340935
16 59746326
17 218334531
18 797537226
19 2912254303
20 10631252766
21 38800597851
22 141582417426
23 516549545527
24 1884336977574
25 6873201390579

[1,2,4,12,39,138,499,1830,6723,24714,90751,332910,
 1219947,4466562,16340935,59746326,218334531,
 797537226,2912254303,10631252766,38800597851,
 141582417426,516549545527,1884336977574,
 6873201390579]

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 April 12 22:36 EDT 2021. Contains 342933 sequences. (Running on oeis4.)