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Search: id:A133132
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| A133132 |
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Number of surjections from an n-element set to a ten-element set. |
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+0
1
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OFFSET
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10,1
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FORMULA
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a(n)=sum(C(10,k)*k^n) with n>=10 and k=10,9,...,1.
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CROSSREFS
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Cf. A000918, A000919, A000920, A001117, A001118, A135456.
Sequence in context: A068158 A011521 A061603 this_sequence A133369 A071552 A053501
Adjacent sequences: A133129 A133130 A133131 this_sequence A133133 A133134 A133135
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KEYWORD
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nonn,bref
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AUTHOR
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Mohamed Bouhamida (bhmd95(AT)yahoo.fr), Dec 16 2007
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