1,2,6,21,86,445,2676

• After 88 answer would be
  1*1+1=2
  2*2+2=6
  6*3+3=21
  21*4+4=88
  88*5+5=445
  445*6+6=2676
  2676*7+7=18739=answer
• 8 years agoHelpfull: Yes(25) No(1)
• You have written 86 instead of 88.correct it
• 8 years agoHelpfull: Yes(6) No(0)
• 1+1=2*1
  2+1=3*2
  6+1=7*3
  21+1=22*4
  therefore 88 will come, but it is 86
  
• 8 years agoHelpfull: Yes(3) No(0)
• 1*(1+1)=2
  2*(2+1)=6
  3*(6+1)=21
  4*(21+1)=88
  5*(88+1)=445
  6*(445+1)=2676
• 7 years agoHelpfull: Yes(1) No(0)
• 86 wil be ans for sure...as it is odd
• 8 years agoHelpfull: Yes(0) No(0)
• 1*1+1=2
  2*2+2=6
  6*3+3=21
  21*4+4=88
  88*5+5=445
  445*6+6=2676
  
  According to me The question is wrong. sequence should be like this 1,2,6,21,88,445,2676.
• 8 years agoHelpfull: Yes(0) No(0)
• After 88 answer would be
  1*1+1=2
  2*2+2=6
  6*3+3=21
  21*4+4=88
  88*5+5=445
  445*6+6=2676
  2676*7+7=18739=answer
• 8 years agoHelpfull: Yes(0) No(0)
• series is wrong it must be 88 in place of 86.....
  1*1+1 = 2
  2*2+2 = 6
  6*3+3 = 21
  21*4+4 = 88
  88*5+5 = 445
  445 * 6 + 6 =2676
  2676*7 + 7 = 18739.......
• 5 years agoHelpfull: Yes(0) No(0)
• the correct answer is instead of 86 88 will be the correct one
• 4 years agoHelpfull: Yes(0) No(0)
• 36 NCDFDXZVG
• 4 years agoHelpfull: Yes(0) No(0)