A185205 - OEIS

%I #12 Jun 28 2012 03:22:13

%S 0,1,1,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,1,0,1,1,1,2,1,0,2,1,1,3,1,0,4,1,

%T 1,5,1,0,6,1,1,8,1,0,9,1,1,12,1,1,0,14,0,1,1,17,2,1,0,20,0,1,1,25,12,

%U 1,0,29,0,1,1,35,67,1,0,41,0,1,1,49,598,1,0

%N Triangular array D(n,k) counting disconnected k-regular simple graphs on n vertices with girth at least 5.

%H Jason Kimberley, <a href="/A185205/b185205.txt">Table of i, a(i)=D(n,k) for i = 1..147 (n = 1..43)</a>

%H Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/D_girth_ge_5">Disconnected regular graphs with girth at least 5</a>

%H Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/D_k-reg_girth_ge_g_index">Index of sequences counting disconnected k-regular simple graphs with girth at least g</a>

%e 0;

%e 1;

%e 1;

%e 1, 1;

%e 1, 0;

%e 1, 1;

%e 1, 0;

%e 1, 1;

%e 1, 0;

%e 1, 1, 1;

%e 1, 0, 1;

%e 1, 1, 2;

%e 1, 0, 2;

%e 1, 1, 3;

%e 1, 0, 4;

%e 1, 1, 5;

%e 1, 0, 6;

%e 1, 1, 8;

%e 1, 0, 9;

%e 1, 1, 12, 1;

%e 1, 0, 14, 0;

%e 1, 1, 17, 2;

%e 1, 0, 20, 0;

%e 1, 1, 25, 12;

%e 1, 0, 29, 0;

%e 1, 1, 35, 67;

%e 1, 0, 41, 0;

%e 1, 1, 49, 598;

%e 1, 0, 57, 0;

%e 1, 1, 69, 7135;

%e 1, 0, 79, 0;

%e 1, 1, 94, 107826;

%e 1, 0, 109, 0;

%e 1, 1, 128, 1876709;

%e 1, 0, 149, 0;

%e 1, 1, 175, 35925162;

%e 1, 0, 201, 0;

%e 1, 1, 235, 741413221, 1;

%e 1, 0, 271, 0, 2;

%e 1, 1, 316, 16356258309, 11;

%e 1, 0, 363, 0, 147;

%e 1, 1, 422, 383936219233, 4215;

%e 1, 0, 483, 0, 132741;

%K nonn,hard,tabf

%O 1,24

%A _Jason Kimberley_, May 31 2012