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A116699 Number of permutations of length n which avoid the patterns 123 and 4312. +0
5
1, 2, 5, 13, 30, 61, 112, 190, 303, 460, 671, 947, 1300, 1743, 2290, 2956, 3757, 4710, 5833, 7145, 8666, 10417, 12420, 14698, 17275, 20176, 23427, 27055, 31088, 35555, 40486, 45912, 51865, 58378, 65485, 73221, 81622, 90725, 100568, 111190, 122631 (list; graph; listen)
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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.


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