This number is a prime.

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The smallest prime that is the sum of the squares of first n triangular numbers with prime indices (3^2+6^2+15^2+28^2+66^2+91^2 = 13691). [Bajpai]

Submitted: 2017-04-03 15:04:04;   Last Modified: 2020-06-14 19:03:15.
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