[0,1,1,2,2,1,3,3,5,1,4,5,7,7,9,9,10,12,13,14,12, 12,16,15,17,16,19,16,21,24,21,22,22,25,25,25,27, 32,33,30,34,34,36,36,37,38,38,44,42,44,42,46,47, 48,50,50,47,52,52,49,54,60,60,59,56,60,62,68,70, 65,65,67,70,70,74]