Dear GAP-forum,
there is a little mistake in the Primitive Groups Library of
GAP v3.4.3: The "isOdd"-Flag of the groups of size 25401600
on 49 points is wrong. PG(393) is in fact odd and PG(394) is
in fact even. Here is a diff-File which I have shot in order
do say precisely what I have fixed (the two wrong bits and
PrimitiveGroup refusing to create PG(406)):
1044,1045c1044,1045 < [49, 25401600, 1, 00100, , , , 339,340,326,341], < [49, 25401600, 1, 00000, , , , 339,340,342], --- > [49, 25401600, 1, 00000, , , , 339,340,326,341], > [49, 25401600, 1, 00100, , , , 339,340,342], 1099,1101d1098 < if deg > PGTable[Length(PGTable)][1] then < Error("<deg> is too large"); < fi; 1113c1110,1113 < if not IsBound( PGTable[h+nr-1] ) --- > if Length(PGTable) < deg then > Error("<deg> is too large"); > fi; > if not IsBound( PGTable[h+nr] )
Sebastian Egner.