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0, 0, 0, 1, 3, 7, 12, 23, 44, 81, 150, 281, 528, 991, 1871, 3541, 6719, 12787, 24384, 46599, 89240, 171196, 328959, 633101, 1220159, 2354687, 4549752, 8801161, 17043505, 33038207, 64103988, 124491775, 241969988, 470681347, 916259631, 1784921473, 3479467176, 6787108712, 13247128044, 25870861823
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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3,5
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COMMENTS
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A002703 is somewhat mysterious. Having four versions (A002703, this sequence, A262568, A262569) instead of one increases the chance that one of them will be found in a different context.
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LINKS
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MAPLE
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CROSSREFS
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Tables 1 and 2 of the first Rosa-Znám 1965 paper are A053632 and A178666 respectively.
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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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