Search: id:A058692
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%I A058692
%S A058692 1,4,14,51,202,876,4139,21146,115974,678569,4213596,27644436,190899321,
%T A058692 1382958544,10480142146,82864869803,682076806158,5832742205056,
%U A058692 51724158235371,474869816156750,4506715738447322,44152005855084345
%N A058692 B(n) - 1, B(n) = Bell numbers, A000110.
%H A058692 W. M. B. Dukes, <a href="http://www.stp.dias.ie/~dukes/matroid.html">
               Tables of matroids</a>
%H A058692 W. M. B. Dukes, <a href="http://www.stp.dias.ie/~dukes/phd.html">Counting 
               and Probability in Matroid Theory</a>, Ph.D. Thesis, Trinity College, 
               Dublin, 2000.
%H A058692 W. M. B. Dukes, <a href="http://arXiv.org/abs/math.CO/0411557">On the 
               number of matroids on a finite set</a>
%H A058692 <a href="Sindx_Mat.html#matroid">Index entries for sequences related 
               to matroids</a>
%p A058692 a:=n->sum(stirling2(n, k), k=2..n): seq(a(n), n=2..23); - Zerinvary Lajos 
               (zerinvarylajos(AT)yahoo.com), Jun 28 2007
%t A058692 f[n_] := Sum[ StirlingS2[n, k], {k, 2, n}]; Table[ f[n], {n, 2, 23}] 
               - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 29 2007
%t A058692 Table[BellB[n, 1] - 1, {n, 2, 23}] [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), 
               Jul 16 2009]
%Y A058692 A diagonal of A058710.
%Y A058692 Sequence in context: A034743 A096241 A149488 this_sequence A165813 A099486 
               A047033
%Y A058692 Adjacent sequences: A058689 A058690 A058691 this_sequence A058693 A058694 
               A058695
%K A058692 nonn
%O A058692 2,2
%A A058692 N. J. A. Sloane (njas(AT)research.att.com), Dec 30 2000

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