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A159743
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If an array is made of columns of -nacci sequences, fibo-, tribo- etc. all starting w. 1,1,2 etc, the NW to SE diagonals can be extended by computation. The above is diagonal 7. See A159741 for details.
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1
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OFFSET
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1,1
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LINKS
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FORMULA
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Interpolate a(n)=2*n+60 offset 0 & b(n)=-2*n+67 offset 0. Add 21 as a leader. Binomially transform. [From Al Hakanson (hawkuu(AT)gmail.com), Jun 08 2009]
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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Al Hakanson (hawkuu(AT)gmail.com), Apr 20 2009
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STATUS
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approved
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