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A115599 A001653(n) - A001652(n). 0
2, 9, 49, 289, 1682, 9800, 57122, 332929 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

L. J. Gerstein, Pythagorean triples and inner products, Math. Mag., 78 (2005), 205-213.

CROSSREFS

Sequence in context: A205571 A052826 A191005 * A000167 A109323 A014372

Adjacent sequences:  A115596 A115597 A115598 * A115600 A115601 A115602

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Mar 14 2006

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Last modified February 16 04:47 EST 2012. Contains 205860 sequences.