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Search: id:A090781
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A090781 Numbers that can be expressed as the difference of the squares of primes in just one distinct way. +0
26
5, 16, 21, 24, 40, 45, 48, 96, 112, 117, 144, 160, 165, 192, 264, 280, 285, 288, 336, 352, 357, 504, 520, 525, 648, 816, 832, 837, 936, 952, 957, 1152, 1344, 1360, 1365, 1368, 1440, 1656, 1672, 1677, 1752, 1824, 1840, 1845, 1872, 1968, 2184, 2200, 2205, 2328 (list; graph; listen)
OFFSET

1,1

LINKS

T. D. Noe, Table of n, a(n) for n=1..908

EXAMPLE

5 = 3^2-2^2.

CROSSREFS

Cf. A078667, A090788, A090782.

Sequence in context: A063612 A057281 A124865 this_sequence A077469 A022140 A041855

Adjacent sequences: A090778 A090779 A090780 this_sequence A090782 A090783 A090784

KEYWORD

nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 14 2004

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Last modified December 3 16:57 EST 2008. Contains 151279 sequences.


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