in the wheel 
 where 
 , is obtained as 
 where 
 and where 
 is the 
 th number in the Lucas series 
 where 
 for 
 . Alternately, 
 where 
 for 
 odd and 
 for 
 even, thus confirming 
 as a square number for 
 odd and serving to verify a previous finding in 1969 by Sedlacek that 
 .