OFFSET
1,1
COMMENTS
LINKS
Ray Chandler, Table of n, a(n) for n = 1..10000
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
Colin Barker, Oct 12 2014
STATUS
approved