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Search: id:A141577
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A141577 Alternating difference recursion: a(0) = -1; a(1) = 0; a(2) = 1; a(3) = -1; a(n)=a(n-1)-3*a(n-2)+3*a(n-3)-a(n-4). +0
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-1, 0, 1, -1, -3, 3, 8, -9, -21, 27, 55, -80, -143, 235, 369, -685, -944, 1983, 2391, -5705, -5985, 16320, 14769, -46441, -35803, 131507, 84824, -370665, -194813, 1040147, 427767, -2906448, -874495, 8088003, 1564377, -22416669, -1971296, 61883839, -1016657, -170165393, 20507391, 466069760 (list; graph; listen)
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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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