A090784 Numbers that can be expressed as the difference of the squares of consecutive primes in just two distinct ways.

72, 120, 168, 312, 408, 552, 600, 768, 792, 912, 1032, 2472, 3048, 3192, 3288, 3528, 3720, 4008, 5160, 5208, 5808, 5928, 6072, 6480, 6792, 6840, 7080, 7152, 7248, 7512, 7728, 7800, 8520, 8760, 9072, 11400, 11880, 11928, 12792, 13200, 13320, 13440

Offset: 1

Author

Ray G. Opao, Feb 08 2004

Keywords

• nonn

Examples

			72 = 19^2-17^2 = 11^2-7^2.
		

Crossrefs

Cf. A078667, A090783, A090785, A091878.

Extensions

More terms from Ray Chandler, Feb 11 2004