login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

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

A331933 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 4
6 6
7 12
8 18
9 33
10 52
11 90
12 142
13 242
14 384
15 639
16 1028
17 1688
18 2716
19 4445
20 7161
21 11665
22 18839
23 30595
24 49434
25 80199
26 129637
27 210079
28 339750
29 550228
30 889978
31 1440909
32 2330887
33 3772845
34 6103823
35 9878357
36 15982196
37 25863454
38 41845650
39 67713550
40 109559443

[1,1,1,2,4,6,12,18,33,52,90,142,242,384,639,1028,
 1688,2716,4445,7161,11665,18839,30595,49434,80199,
 129637,210079,339750,550228,889978,1440909,
 2330887,3772845,6103823,9878357,15982196,25863454,
 41845650,67713550,109559443]

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)