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!)

A026107 as a simple table

n a(n)
2 1
3 3
4 7
5 18
6 46
7 120
8 316
9 841
10 2257
11 6103
12 16611
13 45475
14 125139
15 345957
16 960417
17 2676291
18 7483299
19 20989833
20 59042805
21 166520124
22 470781528
23 1333970190
24 3787707322
25 10775741271
26 30711538351
27 87677551081
28 250704001213
29 717923179762

[1,3,7,18,46,120,316,841,2257,6103,16611,45475,
 125139,345957,960417,2676291,7483299,20989833,
 59042805,166520124,470781528,1333970190,
 3787707322,10775741271,30711538351,87677551081,
 250704001213,717923179762]

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 March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)