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A225967
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Number of permutations of [n] having exactly 6 strong fixed blocks.
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2
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1, 21, 273, 2874, 27243, 246037, 2192863, 19766016, 183564396, 1782944112, 18338911012, 201770228316, 2392011321782, 30683876823738, 426312246308898, 6403885291569540, 103619141358704966, 1797448899803758010, 33259985875540203746, 653383741590779444772
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OFFSET
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16,2
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COMMENTS
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See A186373 for the definition of strong fixed blocks.
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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