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A221176
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a(n) = Sum_{i=0..n} Stirling2(n,i)*2^(4i).
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7
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1, 16, 272, 4880, 91920, 1810192, 37142288, 791744272, 17490370320, 399558315792, 9421351690000, 228916588400400, 5723078052339472, 147025755978698512, 3876566243300318992, 104789417805394595600, 2901159958960121863952, 82188946843192555474704, 2380551266738846355103504, 70441182699006212824911632
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OFFSET
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0,2
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COMMENTS
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The number of ways of putting n labeled balls into a set of bags and then putting the bags into 16 labeled boxes. - Peter Bala, Mar 23 2013
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LINKS
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FORMULA
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E.g.f. exp(16*(exp(x) - 1)). - Peter Bala, Mar 23 2013
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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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