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Search: id:A129785
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| A129785 |
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a(n+1) = Product from k=0 to k=n of 1 + C(n,k)a(k), with a(0) = 1 and C(n,k)the ordinary binomial coefficient. |
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+0
1
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OFFSET
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0,2
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COMMENT
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A product analog of the Bell nunbers.
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REFERENCES
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H. W. Gould, A product analog of the Bell numbers, unpublished manuscript, Jun 03 2007.
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EXAMPLE
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a(5) = (1+1)(1+8)(1+36)(1+280)(1+18886)
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CROSSREFS
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Sequence in context: A136268 A030242 A037293 this_sequence A000896 A103527 A152885
Adjacent sequences: A129782 A129783 A129784 this_sequence A129786 A129787 A129788
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KEYWORD
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easy,nonn
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AUTHOR
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Henry W. Gould (gould(AT)math.wvu.edu), Jun 03 2007
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