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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

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

A025538 as a simple table

n a(n)
0 1
1 0
2 1
3 1
4 3
5 9
6 10
7 66
8 135
9 395
10 396
11 4344
12 4345
13 56471
14 56486
15 56478
16 112957
17 1920251
18 1920252
19 36484768
20 36484789
21 36484767
22 36484768
23 839149640
24 839149645
25 4195748199
26 4195748208
27 12587244596
28 12587244597
29 365030093283
30 365030093284

[1,0,1,1,3,9,10,66,135,395,396,4344,4345,56471,
 56486,56478,112957,1920251,1920252,36484768,
 36484789,36484767,36484768,839149640,839149645,
 4195748199,4195748208,12587244596,12587244597,
 365030093283,365030093284]

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 2 11:59 EST 2021. Contains 349440 sequences. (Running on oeis4.)