All sequence riddles are wrong.....why???? Thanks for consideration! if you get a sequence like that 1,2,3,... so you will say 4 how?? the relation between 1 and 2 is that between 2 and 3(it is a first degree function) (y=mx+b) so you can get two equations to solve a+b=2 2a+b=3 therefore a=1 b=1 so you multiply by one and add one another sequence 2,-10,110,11870,.... so you can try first degree relation as previous and it will not make sense so try the second degree equation f(x)=ax^2+bx+c 4a+2b+c=-10 100a-10b+c=110 2100a+110b+c=11870 solve these equations you get a=1 b=-2 c=-10 so you square and subtract twice the number and subtract ten to get the next term then another sequence can't be applied in the second degree so apply for the third degree and so on so if in any sequence i can get a relation so it is not a riddle as you can't tell me that i am wrong ???????????????????????I can also make the same thing between the term number and it's value i.e in term 1 value 2, term 2 value -10, term 3 value 110...........and get equations and i can get another relation........... so 0,1,1,1,1,5,1,7,2,.......... can be solved maximum by the seventh degree it is too long but easily solved so it will have 3 answers my 2 answers and another answer says that the relation is that you take 0/12,1/12,1/6,1/4,1/3,5/12,1/2,7/12,2/3,5/6,....... so the riddle is wrong as it has three answers ..!!!!!!