PERIOD results for test signal (cos(0.6x) + noise):
 NOUT,JMAX,PROB=         180          38  3.6528621E-05
           33  0.5235988      0.2609160    
           34  0.5394655      0.1214283    
           35  0.5553321       2.016261    
           36  0.5711988       7.206171    
           37  0.5870655       13.06968    
           38  0.6029321       14.71722    
           39  0.6187987       10.87719    
           40  0.6346654       4.613152    
           41  0.6505320      0.8692957    
           42  0.6663986      0.9621168    
           43  0.6822653       2.122021