Complete the sequence
1,11,21,1211,111221,?

• 312211
  each next number in the series describes the number of one's(1) and two's(2)in the previous element.
  for eg
  111221 will be read as three(3) ones(1),two(2) twos(2) and one(1) one(1).
  collectively taking the numbers, we have next number as 312211.
• 12 years agoHelpfull: Yes(50) No(1)
• 312211 this is a common number sequence
  
• 12 years agoHelpfull: Yes(10) No(1)
• ans:312211.becaz,in last digits,3 one's two 2's,one one's.
• 12 years agoHelpfull: Yes(3) No(1)
• answer is 1,11,21,1211,1111221, the next number is 111122211
• 12 years agoHelpfull: Yes(1) No(2)
• Rishi Singh's ans is right..
• 12 years agoHelpfull: Yes(1) No(2)
• how ? @rishi
• 12 years agoHelpfull: Yes(1) No(1)
• is the ans 111211
• 12 years agoHelpfull: Yes(0) No(1)
• 111122211
  
• 12 years agoHelpfull: Yes(0) No(1)
• the ans is 111221211 ..
  
• 12 years agoHelpfull: Yes(0) No(1)
• 2112111112
• 12 years agoHelpfull: Yes(0) No(2)
• sry.i made mistake
• 12 years agoHelpfull: Yes(0) No(2)