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A226858
Numbers n such that there are six distinct triples (k, k+n, k+2n) of squares.
1
258594336000, 1034377344000, 2327349024000, 4137509376000, 6464858400000, 9309396096000, 12671122464000, 16550037504000, 20946141216000, 25859433600000
OFFSET
1,1
COMMENTS
For the first 10 terms we have a(n) = n^2 * a(1). Are there any other primitive terms other than a(1)?
EXAMPLE
These 6 triples have a common difference of 9309396096000: (579774^2, 3105726^2, 4353726^2), (781560^2, 3149640^2, 4385160^2), (2241720^2, 3786120^2, 4862520^2), (4187880^2, 5181480^2, 6013080^2), (9320040^2, 9806760^2, 10270440^2), and (10273140^2, 10716660^2, 11142540^2).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Zdenek Cervenka, Jun 20 2013
STATUS
approved