An interesting sequence (Part-2)

Number Theory Level 4

What is the next term of the sequence : 

           1,7,13,31,31,91, ?


The answer is 57.

Sriram Venkatesan by Sriram Venkatesan , 21, India

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1 solution

These are the sum of divisors of squares of natural numbers . Honestly I was able to do this because I had been asked the same question previously .

1 Helpful 0 Interesting 0 Brilliant 0 Confused

Try out the third part

Sriram Venkatesan - 6 years, 5 months ago

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It's a good one bro, I'll get on with it .

A Former Brilliant Member - 6 years, 5 months ago

... and I used oeis.org.

Bill Bell - 5 years, 10 months ago

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