login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A170900 Number of 2-generator groups of order 2^n. 0
3, 8, 19, 53, 162, 540, 2043 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

REFERENCES

B. Eick, Computing p-groups with trivial Schur multiplier, J. Algebra, 322 (2009), 741-751.

B. Eick and E. O'Brien, Enumerating p-groups, J. Australian Math. Soc., 67 (1999), 191-205.

LINKS

Table of n, a(n) for n=3..9.

CROSSREFS

Cf. A170901, A170902.

Sequence in context: A164586 A018032 A086808 * A151347 A047093 A304256

Adjacent sequences:  A170897 A170898 A170899 * A170901 A170902 A170903

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 19 2010

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 12 12:50 EST 2019. Contains 329958 sequences. (Running on oeis4.)