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!)

A117375 as a simple table

n a(n)
0 1
1 3
2 1
3 12
4 4
5 1
6 51
7 17
8 5
9 1
10 222
11 74
12 23
13 6
14 1
15 978
16 326
17 104
18 30
19 7
20 1
21 4338
22 1446
23 468
24 142
25 38
26 8
27 1
28 19323
29 6441
30 2103
31 657
32 189
33 47
34 9
35 1
36 86310
37 28770
38 9447
39 3006
40 903
41 246
42 57
43 10
44 1
45 386250
46 128750
47 42440
48 13670
49 4223
50 1217
51 314
52 68
53 11
54 1
55 1730832

[1,3,1,12,4,1,51,17,5,1,222,74,23,6,1,978,326,104,
 30,7,1,4338,1446,468,142,38,8,1,19323,6441,2103,
 657,189,47,9,1,86310,28770,9447,3006,903,246,57,
 10,1,386250,128750,42440,13670,4223,1217,314,68,
 11,1,1730832]

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 14 07:03 EST 2019. Contains 329978 sequences. (Running on oeis4.)