Wedge_Bits[ BLOCK_SIZES ] =
{
  0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 4,
  4, 0, 0, 0, 0, 0, 0,
  0, 0, 4, 4, 4, 4,
  0, 0, 4, 4
 }