A185035 - OEIS

%I #11 May 01 2014 02:37:01

%S 0,0,0,0,0,0,0,0,0,0,1,2,12,67,597,7134,107820,1876672,35924730,

%T 741405102,16356067055,383931363314

%N Number of disconnected 3-regular simple graphs on 2n vertices with girth exactly 5.

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

%F a(n) = A185235(n) - A185236(n).

%Y Disconnected 3-regular simple graphs with girth exactly g: A185033 (g=3), A185034 (g=4), this sequence (g=5), A185036 (g=6), A185037 (g=7).

%K nonn,more,hard

%O 0,12

%A _Jason Kimberley_, Feb 29 2012