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!)

A002780 as a simple table

n a(n)
1 0
2 1
3 2
4 7
5 11
6 101
7 111
8 1001
9 2201
10 10001
11 10101
12 11011
13 100001
14 101101
15 110011
16 1000001
17 1001001
18 1100011
19 10000001
20 10011001
21 10100101
22 11000011
23 100000001
24 100010001
25 100101001
26 101000101
27 110000011
28 1000000001
29 1000110001

[0,1,2,7,11,101,111,1001,2201,10001,10101,11011,
 100001,101101,110011,1000001,1001001,1100011,
 10000001,10011001,10100101,11000011,100000001,
 100010001,100101001,101000101,110000011,
 1000000001,1000110001]

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 14:10 EDT 2024. Contains 371792 sequences. (Running on oeis4.)