2 5 9 19 37 ?

• 2+2+1=5
  5+5-1=9
  9+9+1=19
  19+19-1=37
  37+37+1=75
• 8 years agoHelpfull: Yes(8) No(1)
• 2*2 + 1= 5
  5*2 - 1 =9
  9*2 + 1 =19
  19*2 -1 =37
  37*2 +1= 75
• 8 years agoHelpfull: Yes(7) No(0)
• 2*2+1=5
  5*2-1=9
  9*2+1=19
  .
  .
  .
  37*2+1=75
• 8 years agoHelpfull: Yes(1) No(0)
• 2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75
  so.ans 75.........
• 8 years agoHelpfull: Yes(0) No(0)
• 2*5=10-1=9
  2*9=18+1=19
  2*19=38-1=37
  2*37=74+1=75
• 8 years agoHelpfull: Yes(0) No(0)
• 2*2+1=5
  5*2-1=9
  9*2+1=19
  19*2-1=37
  37*2+1=75
• 8 years agoHelpfull: Yes(0) No(0)
• 75
  75=37+2*19
• 8 years agoHelpfull: Yes(0) No(0)
• 1^1+1=2
  2^2+1=5
  2^3+1=9
  2^4+3=19
  2^5+5=37
  2^6+11=75
• 5 years agoHelpfull: Yes(0) No(0)