A092009 Numbers that can be expressed as the difference of the squares of primes in exactly thirteen distinct ways.

236208, 316680, 480480, 644280, 750120, 757680, 792120, 822120, 822360, 896280, 925680, 1015560, 1025640, 1044120, 1067640, 1129128, 1136520, 1255800, 1274280, 1299480, 1391280, 1484280, 1487640, 1489488, 1572648, 1616160, 1707888

Offset: 1

Author

Ray Chandler, Feb 22 2004

Keywords

• nonn

Examples

			236208 = 487^2-31^2 = 547^2-251^2 = 577^2-311^2 = 643^2-421^2 =
787^2-619^2 = 853^2-701^2 = 2137^2-2081^2 = 2833^2-2791^2 = 4933^2-4909^2 =
8443^2-8429^2 = 14767^2-14759^2 = 19687^2-19681^2 = 59053^2-59051^2
		

Crossrefs

Cf. A090781, A090782, A090788, A092000-A092020.