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Search: id:A146979
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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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+0
2
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OFFSET
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1,2
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EXAMPLE
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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
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Sequence in context: A140849 A008388 A060888 this_sequence A157722 A010959 A010995
Adjacent sequences: A146976 A146977 A146978 this_sequence A146980 A146981 A146982
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KEYWORD
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base,more,nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Nov 04 2008
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EXTENSIONS
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base keyword added. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 09 2008
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