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A286271
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a(0)=1; thereafter a(n) = Sum_{k=2..n+1} A006206(k).
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1
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1, 1, 2, 3, 5, 7, 11, 16, 24, 35, 53, 78, 118, 176, 266, 401, 611, 927, 1419, 2169, 3333, 5124, 7910, 12215, 18925, 29345, 45609, 70959, 110609, 172576, 269684, 421829, 660647, 1035602, 1625122, 2552322, 4012282, 6312136, 9938336, 15658610, 24689060, 38952138
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listen;
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OFFSET
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0,3
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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