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!)

A195981 as a simple table

n a(n)
0 1
1 -1
2 -1
3 -1
4 -2
5 -4
6 -10
7 -25
8 -66
9 -178
10 -490
11 -1370
12 -3881
13 -11113
14 -32115
15 -93542
16 -274332
17 -809377
18 -2400641
19 -7154066
20 -21409915
21 -64317898
22 -193886665
23 -586311736
24 -1778101466
25 -5406660260
26 -16479943037
27 -50344990445
28 -154120149335
29 -472717222756
30 -1452529814867
31 -4470733286364
32 -13782117172530
33 -42549485082664
34 -131545321942331

[1,-1,-1,-1,-2,-4,-10,-25,-66,-178,-490,-1370,
 -3881,-11113,-32115,-93542,-274332,-809377,
 -2400641,-7154066,-21409915,-64317898,-193886665,
 -586311736,-1778101466,-5406660260,-16479943037,
 -50344990445,-154120149335,-472717222756,
 -1452529814867,-4470733286364,-13782117172530,
 -42549485082664,-131545321942331]

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 September 10 04:30 EDT 2024. Contains 375773 sequences. (Running on oeis4.)