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A322768
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Column 3 of array in A322765.
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4
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66, 249, 1075, 5133, 26683, 149410, 894124, 5683643, 38186471, 270054693, 2003233849, 15539557832, 125727364954, 1058517565329, 9254401000167, 83864649249661, 786443164853871, 7620060523287298, 76182494678422156, 784894262599538443, 8323844770001318027, 90767456208155581709
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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REFERENCES
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D. E. Knuth, The Art of Computer Programming, Vol. 4A, Table A-1, page 778.
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LINKS
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PROG
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(PARI) T(n, k) = if(k==0, sum(j=0, n, stirling(n, j, 2)), (T(n+2, k-1)+T(n+1, k-1)+sum(j=0, k-1, binomial(k-1, j)*T(n, j)))/2);
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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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