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A092008
Numbers that can be expressed as the difference of the squares of primes in exactly twelve distinct ways.
0
55440, 57960, 94248, 157080, 371280, 394680, 404040, 414120, 447720, 502320, 560280, 572880, 578760, 583440, 619080, 656880, 742560, 756840, 777480, 906360, 939120, 963480, 988680, 1033032, 1053360, 1056720, 1062600, 1088472, 1096680
OFFSET
1,1
EXAMPLE
55440 = 239^2-41^2 = 257^2-103^2 = 283^2-157^2 = 307^2-197^2 =
353^2-263^2 = 359^2-271^2 = 421^2-349^2 = 523^2-467^2 = 1549^2-1531^2 =
1987^2-1973^2 = 2777^2-2767^2 = 3469^2-3461^2
CROSSREFS
KEYWORD
nonn
AUTHOR
Ray Chandler, Feb 22 2004
STATUS
approved