cp's OEIS Frontend

A264617 Irregular triangle read by rows: T(n,k) = number of signed unichromosonal genomes with n genes at 4-break distance k from a fixed genome, 0 <= k <= floor((n+1)/3).

%I A264617 #10 Feb 13 2018 10:50:43
%S A264617 1,1,1,1,7,1,47,1,175,208,1,470,3369,1,1036,45043,1,2002,315213,
%T A264617 327904,1,3522,1472157,8846240,1,5775,5287071,180501713,1,8965,
%U A264617 15795483,1908769247,1791317504,1,13321,41169051,13068136571,68640287456,1,19097,96558891,66722214923,1895171760688
%N A264617 Irregular triangle read by rows: T(n,k) = number of signed unichromosonal genomes with n genes at 4-break distance k from a fixed genome, 0 <= k <= floor((n+1)/3).
%H A264617 N. Alexeev, A. Pologova, M. A. Alekseyev, Generalized Hultman Numbers and Cycle Structures of Breakpoint Graphs, Journal of Computational Biology 24:2 (2017), 93-105. doi:<a href="http://doi.org/10.1089/cmb.2016.0190">10.1089/cmb.2016.0190</a> arXiv:<a href="http://arxiv.org/abs/1503.05285">1503.05285</a>
%e A264617 Triangle begins:
%e A264617 1,
%e A264617 1,1,
%e A264617 1,7,
%e A264617 1,47,
%e A264617 1,175,208,
%e A264617 1,470,3369,
%e A264617 1,1036,45043,
%e A264617 1,2002,315213,327904,
%e A264617 1,3522,1472157,8846240,
%e A264617 ...
%Y A264617 Cf. A164652, A189507, A264614, A264615, A264616.
%K A264617 nonn,tabf
%O A264617 1,5
%A A264617 _N. J. A. Sloane_, Nov 28 2015
%E A264617 Extended and offset corrected by _Max Alekseyev_, Feb 13 2018