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!)

A101053 as a simple table

n a(n)
0 1
1 2
2 6
3 23
4 107
5 587
6 3725
7 26952
8 219756
9 1998951
10 20105485
11 221838905
12 2666280457
13 34689290378
14 485840964614
15 7288997427755
16 116634438986227
17 1982868327635663
18 35692311974248093
19 678159760252918824
20 13563246929216611852
21 284828660383365005643

[1,2,6,23,107,587,3725,26952,219756,1998951,
 20105485,221838905,2666280457,34689290378,
 485840964614,7288997427755,116634438986227,
 1982868327635663,35692311974248093,
 678159760252918824,13563246929216611852,
 284828660383365005643]

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 07:31 EST 2019. Contains 329948 sequences. (Running on oeis4.)