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Search: id:A159755
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| 0, -1, 1, -2, -1, 4, -3, -3, 0, 12, -4, -5, -4, 4, 32, -5, -7, -8, -4, 16, 80, -6, -9, -12, -12, 0, 48, 192, -7, -11, -16, -20, -16, 16, 128, 448, -8, -13, -20, -28, -32, -16, 64, 320, 1024, -9, -15, -24, -36, -48, -48, 0, 192, 768, 2304
(list; table; graph; listen)
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OFFSET
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0,4
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FORMULA
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Sum_{k=0..n}T(n,k)= A045618(n-2)for n>=2 . T(2n,n)=-A001787(n).
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EXAMPLE
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Triangle begins : 0 ; -1,1 ; -2,-1,4 ; -3,-3,0,12 ; -4,-5,-4,4,32 ; ...
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CROSSREFS
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Sequence in context: A093067 A098122 A159931 this_sequence A094322 A136757 A134599
Adjacent sequences: A159752 A159753 A159754 this_sequence A159756 A159757 A159758
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KEYWORD
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sign,tabl
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AUTHOR
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Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Apr 21 2009
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