This site is supported by donations to The OEIS Foundation.

The October issue of the Notices of the Amer. Math. Soc. has an article about the OEIS.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A109379 Orders of non-cyclic simple groups (with repetition). 4
 60, 168, 360, 504, 660, 1092, 2448, 2520, 3420, 4080, 5616, 6048, 6072, 7800, 7920, 9828, 12180, 14880, 20160, 20160, 25308, 25920, 29120, 32736, 34440, 39732, 51888, 58800, 62400, 74412, 95040, 102660, 113460, 126000, 150348 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The first repetition is at 20160 (= 8!/2) and the first proof that there exist two nonisomorphic simple groups of this order was given by the American mathematician Ida May Schottenfels (1869-1942). - David Callan, Nov 21 2006 REFERENCES See A001034 for references and other links. LINKS David A. Madore, Table of n, a(n) for n = 1..493 [taken from link below] David A. Madore, More terms John McKay, The non-abelian simple groups g, |g|<10^6 - character tables, Commun. Algebra 7 (1979) no. 13, 1407-1445. Ida May Schottenfels, Two Non-Isomorphic Simple Groups of the Same Order 20,160, Annals of Math., 2nd Ser., Vol. 1, No. 1/4 (1899), pp. 147-152. CROSSREFS Cf. A000001, A000679, A005180, A001228, A060793, A056866, A056868, A119630. Cf. A001034 (orders without repetition), A119648 (orders that are repeated). Sequence in context: A044773 A256633 A118671 * A001034 A119630 A216480 Adjacent sequences:  A109376 A109377 A109378 * A109380 A109381 A109382 KEYWORD nonn,nice AUTHOR N. J. A. Sloane, Jul 29 2006 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 25 01:17 EDT 2018. Contains 315360 sequences. (Running on oeis4.)