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A122100
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a(0)=1, a(1)=-1, a(2)=0, a(n)=3*a(n-1)-a(n-3) for n>2.
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3
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1, -1, 0, -1, -2, -6, -17, -49, -141, -406, -1169, -3366, -9692, -27907, -80355, -231373, -666212, -1918281, -5523470, -15904198, -45794313, -131859469, -379674209, -1093228314, -3147825473, -9063802210, -26098178316, -75146709475, -216376326215, -623030800329, -1793945691512
(list; graph; refs; listen; history; internal format)
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