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A146979
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Number of Pythagorean triples (a,b,c), a^2+b^2=c^2, with a,b,c all n-digit numbers, a<b.
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1
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OFFSET
| 1,2
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EXAMPLE
| n=1: a(1)=1 Pythagorean triple (2,3,5), 3^2+4^2=5^2; n=2: a(2)=43 Pythagorean triples {a,b,c}, {10, 24, 26},..,{65,72,97}.
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CROSSREFS
| Sequence in context: A184145 A008388 A060888 * A157722 A010959 A161668
Adjacent sequences: A146976 A146977 A146978 * A146980 A146981 A146982
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KEYWORD
| base,more,nonn
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Nov 04 2008
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EXTENSIONS
| base keyword added. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 09 2008
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