A144832 Distance from nxtprm(n^2) to (n+1)^2 in A144831 is prime.

2, 5, 7, 11, 17, 17, 23, 29, 31, 41, 47, 67, 71, 71, 89, 89, 97, 113, 109, 107, 127, 131, 137, 157, 167, 173, 173, 191, 197, 193, 197, 227, 233, 227, 251, 257, 271, 293, 271, 307, 313, 317, 331, 349, 353, 383, 383, 409, 419, 431, 449, 463, 467, 487, 503, 509

Offset: 1

Author

Enoch Haga, Sep 22 2008

Keywords

• easy
• nonn

Examples

			a(2)=5 because 3^2=9 and 4^2=16. Nxtprm(3^2)=11 and 16-11=5, a prime.
		

Crossrefs

A007491 A053000 A144831

Formula

Terms in this sequence are from A144831 iff the distance from nxtprm n^2 to (n+1)^2 is prime.