

A248712


Numbers n that are the product of four distinct primes such that x^2+y^2 = n has integer solutions.


3



2210, 3770, 4810, 4930, 5330, 6290, 6890, 6970, 7930, 9010, 9490, 10370, 10730, 11570, 11890, 12410, 12610, 12818, 13130, 14170, 14690, 15130, 15170, 15370, 16354, 16490, 17170, 17690, 17810, 18122, 18530, 19210, 19370, 19610, 20410, 21170, 21730, 22490
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OFFSET

1,1


COMMENTS



LINKS



EXAMPLE

2210 is in the sequence because 2210 = 2*5*13*17, and x^2+y^2=2210 has integer solutions (x,y) = (1,47), (19,43), (23,41) and (29,37).
32045 is in the sequence because x^2 + y^2 = 32045 = 5*13*17*29 has solutions (x,y) = (2,179), (19,178), (46,173), (67,166), (74,163), (86,157), (109,142) and (122,131).


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



