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Centered Triangular Primes

A centered triangular number is a centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center dot in successive triangular layers. The centered triangular number for n is given by the formula (3n2 + 3n + 2) / 2.

Centered triangular primes are such numbers which are also primes.

First 20: 19, 31, 109, 199, 409, 571, 631, 829, 1489, 1999, 2341, 2971, 3529, 4621, 4789, 7039, 7669, 8779, 9721, 10459

Checkout list of first: 10, 50, 100, 500 centered triangular primes. You can also check all centered triangular primes.

Checkout centered triangular primes up to: 100, 500, 1000, 10000.

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