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A239892
List of orders of finite simple groups which are unit groups of rings.
1
2, 3, 7, 31, 127, 168, 8191, 20160, 131071, 524287, 9999360, 2147483647, 20158709760, 163849992929280, 2305843009213693951, 5348063769211699200, 699612310033197642547200, 618970019642690137449562111, 366440137299948128422802227200, 162259276829213363391578010288127
OFFSET
1,1
COMMENTS
The rings are assumed to be unital, but not necessarily commutative, and ring homomorphisms send 1 to 1.
LINKS
Christopher Davis and Tommy Occhipinti, Which finite simple groups are unit groups?, preprint, J. Pure Appl. Algebra, 218 (2014), no. 4, 743--744. MR3133704.
FORMULA
Union of {2}, A000668 and A002884.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 03 2014
STATUS
approved