# Find the missing Item in the sequence [closed]

There is a sequence described below.What is the missing item?

$5,10,?,50,122,...$

## closed as off-topic by M. Vinay, JonMark Perry, R_D, user186170, callculusMay 30 '16 at 11:32

This question appears to be off-topic. The users who voted to close gave this specific reason:

• "This question is missing context or other details: Please improve the question by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level." – M. Vinay, JonMark Perry, R_D, Marco Cantarini, callculus
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• I am not sure (since I am not active on that site), but puzzling.SE has a tag for this type of question. So it might be a possible place to ask such questions. (Maybe the experienced users of that site would be able to give better advice on what kind of questions is suitable there.) – Martin Sleziak Jun 7 '16 at 14:34

$2^2+1,3^2+1 , .., 7^2+1, 11^2+1$, seems like series of primes to me so I would guess 26
It must be zero, and the sequence is, of course, $$5,10,0,50,122,0,5,10,0,50,122,0,5,10,0,\dots$$