%I #22 Sep 19 2015 18:08:26
%S 2,8,22,94,454,2430,14214,89918,610182,4412958
%N Incorrect version of A001861.
%D Carlier, Jacques; and Lucet, Corinne; A decomposition algorithm for network reliability evaluation. In First International Colloquium on Graphs and Optimization (GOI), 1992 (Grimentz). Discrete Appl. Math. 65 (1996), 141-156.
%F There is an explicit formula in the reference (see p. 152).
%o (PARI) a(n) = sum(j=1, k, stirling(k,j,2)*2^(j)) \\ _Michel Marcus_, Apr 25 2013
%Y Cf. A191644.
%K dead
%O 1,1
|