Centered triangular primes up to 631

Centered triangular primes: Primes of the form (3n^2 + 3n + 2) / 2.

There is 7 centered triangular primes smaller than 631.

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

19, 31, 109, 199, 409, 571, 631

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• All centered triangular primes