1,3

Ambivalent means that each element of the group A_n is a conjugate of its inverse element.

The only alternating groups A_n with real character table.

G. James and A. Kerber, The Representation Theory of the Symmetric Group, Encyclopedia of Maths. and its Appls., Vol. 16, Addison-Wesley, 1981, Reading, MA, U.S.A., p. 12, 1.2.12 and p. 14, 1.2.16.

Sequence in context: A047440 A007674 A086719 this_sequence A075823 A102212 A005984

Adjacent sequences: A115197 A115198 A115199 this_sequence A115201 A115202 A115203

nonn,fini

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Feb 23 2006