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A092018 Numbers that can be expressed as the difference of the squares of primes in exactly twenty-two distinct ways. +0
1
526680, 2106720, 4037880, 4555320, 4772040, 4924920, 7785960, 9988440 (list; graph; listen)
OFFSET

1,1

EXAMPLE

526680 = 727^2-43^2 = 733^2-103^2 = 761^2-229^2 = 839^2-421^2 =

863^2-467^2 = 883^2-503^2 = 941^2-599^2 = 1009^2-701^2 = 1123^2-857^2 =

1171^2-919^2 = 1307^2-1087^2 = 1429^2-1231^2 = 1481^2-1291^2 = 1553^2-1373^2

= 1951^2-1811^2 = 2153^2-2027^2 = 3797^2-3727^2 = 6949^2-6911^2 =

7333^2-7297^2 = 9419^2-9391^2 = 11981^2-11959^2 = 14639^2-14621^2

CROSSREFS

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

Sequence in context: A017701 A013967 A036097 this_sequence A038682 A017082 A017166

Adjacent sequences: A092015 A092016 A092017 this_sequence A092019 A092020 A092021

KEYWORD

nonn,more

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 22 2004

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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