The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A003061 Number of non-Abelian (finite) groups with n conjugacy classes. (Formerly M1728) 5
 0, 0, 1, 2, 7, 7, 11, 18, 24, 37, 34, 30 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 REFERENCES E. K. Annavaddar, Determination of the Finite Groups Having Eight Conjugacy Classes. Ph.D. Diss., Arizona State Univ., 1971. N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS Table of n, a(n) for n=1..12. J. Poland, Finite groups with a given number of conjugate classes<, Canad. J. Math. 20 1968 456-464. J. Poland, Finite groups with a given number of conjugate classes, Canad. J. Math. 20 1968 456-464. (Annotated scanned copy) Index entries for sequences related to groups FORMULA A073043(n) = a(n) + A000688(n). EXAMPLE 1,1,2,4,8,8,12,21,26,38,35,32 (A073043) 1,1,1,2,1,1,.1,.3,.2,.1,.1,.2 (subtract A000688) ----------------------------- 0,0,1,2,7,7,11,18,24,37,34,30 (A003061) CROSSREFS Cf. A002319, A000688, A073043 (for total number), A006379. Sequence in context: A332633 A316352 A114532 * A087385 A168278 A267499 Adjacent sequences: A003058 A003059 A003060 * A003062 A003063 A003064 KEYWORD nonn,nice,more,hard AUTHOR N. J. A. Sloane EXTENSIONS a(8) corrected and a(9)-a(12) from Michael Somos, Aug 10 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 9 04:25 EDT 2024. Contains 375027 sequences. (Running on oeis4.)