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A126299
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Factorial codes for the fixed points of the square of Vaillé's 1997 bijection on Dyck paths.
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4
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0, 1, 11, 21, 111, 321, 1111, 4321, 11111, 23211, 54321, 111111, 122211, 324321, 654321, 1111111, 1222121, 2432211, 3244321, 7654321, 11111111, 22121321, 34443211, 87654321, 111111111, 122322121, 325543321, 987654321, 1111111111
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OFFSET
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0,3
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COMMENTS
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From n=31 the terms cannot anymore be presented unambiguously with decimal numbers, as A126298(31)=23713, A071156(23713)=39916799 and A007623(39916799) would result the factorial expansion "T987654321", where T stands for digit "ten".
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LINKS
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FORMULA
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CROSSREFS
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Superset of A126301. Number of terms of length n is given by A126295(n).
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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