A092017 Numbers that can be expressed as the difference of the squares of primes in exactly twenty-one distinct ways.

2282280, 5165160, 5645640, 5969040, 6754440, 7197960, 8048040, 8075760, 8426880, 8725080, 9267720, 10767120, 11466840, 12235080, 12252240, 12480720, 13508880, 13581960, 13869240, 13901160, 13980120, 14316120, 14665560

Offset: 1

Author

Ray Chandler, Feb 22 2004

Keywords

• nonn

Crossrefs

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

Extensions

a(12)-a(23) from Donovan Johnson, Nov 26 2008