

Number of groups of order 
Information on groups 
Information on group cohomology


0 
1 
1 
trivial group 
group cohomology of trivial group

1 
2 
1 
cyclic group:Z2 
group cohomology of cyclic group:Z2

2 
4 
2 
groups of order 4 (see specifically cyclic group:Z4 and Klein fourgroup) 
group cohomology of groups of order 4 (see specifically group cohomology of cyclic group:Z4 and group cohomology of Klein fourgroup)

3 
8 
5 
groups of order 8 
group cohomology of groups of order 8

4 
16 
14 
groups of order 16 
group cohomology of groups of order 16

5 
32 
51 
groups of order 32 
group cohomology of groups of order 32

6 
64 
267 
groups of order 64 
group cohomology of groups of order 64

7 
128 
2328 
groups of order 128 
group cohomology of groups of order 128

8 
256 
56092 
groups of order 256 
group cohomology of groups of order 256

9 
512 
10494213 
groups of order 512 
group cohomology of groups of order 512

10 
1024 
49487365422 
groups of order 1024 
group cohomology of groups of order 1024
