Centered Square Primes
A centered square number is a centered figurate number that represents a square with a dot in the center and all other dots surrounding the center dot in successive square layers. The centered square number for n is given by the formula n2 + (n+1)2.
Centered square primes are such numbers which are also primes.
First 20: 5, 13, 41, 61, 113, 181, 313, 421, 613, 761, 1013, 1201, 1301, 1741, 1861, 2113, 2381, 2521, 3121, 3613
Checkout list of first: 10, 50, 100, 500 centered square primes. You can also check all centered square primes.
Checkout centered square primes up to: 100, 500, 1000, 10000.
External#
- OEIS: A027862
- Wikipedia: Centered Square Primes
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