1,2,4,13,31,112,?

• Given Series is 1,2,4,13,31,112,...
  
  Actually the series is 1,2,4,8,16,32,....
  
  convert these numbers into the base 5.
  
  it means ......
  
  5 | 8
  ----
  1 - 3
  
  5 | 16
  -----
  3 - 1
  
  5 | 32
  -----
  5 | 6 - 2
  ----
  1 - 1
  
  5 | 64
  ----
  5 | 12 - 4
  ----
  2 - 2
  
  So this series going like.. 1, 2, 4, 13, 31, 112, 224, 1003,.....
  
  
• 12 years agoHelpfull: Yes(19) No(4)
• Ans is 174
  2-1=1=(3^0=1)
  4-2=2=(2^2-2=2)
  13-4=9=(3^2=9)
  31-13=18=(2^4+2=18)
  112-31=81=(3^4=81)
  next term will be
  x-112=2^6-2
  x=64-2+112
  x=174
• 12 years agoHelpfull: Yes(4) No(1)
• 274
  1,2,4 2-1=1, 4-2=2(1)
  4,13,31 13-4=7, 31-13=2(9)
  31,112,? 112-31=81, ?-112=2(81)
  ?=274
• 12 years agoHelpfull: Yes(3) No(4)
• actually the series is 1,2,4,8,16,32.....so on
  this is converted to base 5
  so the next term is 224..
• 12 years agoHelpfull: Yes(3) No(1)
• difference b/w 1,4,31 are multiple of 9
  so difference b/w 2,13,next is also multiple of 9
• 12 years agoHelpfull: Yes(1) No(1)
• is 274 or 224 is correct srujan plz xplain brieflyy??????????????/
• 12 years agoHelpfull: Yes(0) No(1)