login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

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

A151195 as a simple table

n a(n)
0 1
1 3
2 12
3 52
4 237
5 1099
6 5213
7 24940
8 120389
9 584838
10 2853373
11 13976063
12 68652709
13 338034589
14 1667756201
15 8241492662
16 40782808665
17 202049395507
18 1002001335467
19 4973396367842
20 24703642321516
21 122786278471416
22 610640791721211
23 3038355979978879
24 15124580771488710
25 75317942432483327

[1,3,12,52,237,1099,5213,24940,120389,584838,
 2853373,13976063,68652709,338034589,1667756201,
 8241492662,40782808665,202049395507,1002001335467,
 4973396367842,24703642321516,122786278471416,
 610640791721211,3038355979978879,
 15124580771488710,75317942432483327]

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 December 12 22:06 EST 2019. Contains 329963 sequences. (Running on oeis4.)