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A225970
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Number of permutations of [n] having exactly 9 strong fixed blocks.
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2
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1, 33, 627, 9073, 111870, 1248766, 13110889, 132972135, 1329550237, 13327791693, 135953350084, 1431074091372, 15754008527799, 183668908342603, 2292564722628641, 30882981325870191, 450836857113720902, 7132752605955632598, 121911367111794972727
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OFFSET
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25,2
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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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