A092005 Numbers that can be expressed as the difference of the squares of primes in exactly nine distinct ways.

9240, 15960, 22440, 27720, 39480, 50232, 62160, 72072, 80808, 84840, 85272, 92568, 99528, 108360, 111720, 112728, 124488, 127680, 138600, 141360, 151032, 155400, 160440, 174720, 182280, 186648, 192192, 210672, 224400, 237048, 245520

Offset

1,1

Links

Table of n, a(n) for n=1..31.

Example

9240 = 97^2-13^2 = 101^2-31^2 = 103^2-37^2 = 107^2-47^2 =
127^2-83^2 = 131^2-89^2 = 179^2-151^2 = 467^2-457^2 = 2311^2-2309^2

Crossrefs

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

Sequence in context: A262508 A272596 A189984 * A236512 A031848 A184211

Adjacent sequences: A092002 A092003 A092004 * A092006 A092007 A092008

Keyword

nonn

Author

Ray Chandler, Feb 22 2004

Status

approved