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A192547
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sum(stirling1(n,k)*stirling1(n+1,k+1),k=0..n).
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1
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1, 1, 4, 41, 746, 20952, 837222, 45064203, 3140545942, 274969698158, 29537121873656, 3818716753252766, 584845275604394884, 104699320897565702206, 21661251169082551846770, 5128537368950263252563795, 1377694241395636643874812070
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OFFSET
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0,3
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LINKS
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MATHEMATICA
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Table[Sum[StirlingS1[n, k]StirlingS1[n+1, k+1], {k, 0, n}], {n, 0, 100}]
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PROG
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(Maxima) makelist(sum(stirling1(n, k)*stirling1(n+1, k+1), k, 0, n), n, 0, 24);
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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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