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A143281 Number of binary words of length n containing at least one subword 101 and no subword 11. +0
2
0, 0, 0, 1, 2, 4, 8, 15, 27, 48, 84, 145, 248, 421, 710, 1191, 1989, 3309, 5487, 9073, 14966, 24634, 40472, 66384, 108729, 177858, 290610, 474364, 773615, 1260643, 2052818, 3340662, 5433345, 8832432, 14351403, 23309326, 37844645, 61423513 (list; graph; listen)
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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

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