A341924 - OEIS

%I #12 Mar 13 2021 20:28:45

%S 1,2,10,60,386,2652,18914,139264,1048947,8057026,62893270,497840520,

%T 3988465676,32292955800,263910215250,2174723058816,18053970236196,

%U 150883196364072,1268622177683432,10725273649776860,91130026089055954,777875145348140268,6667969516814183630

%N Number of 3-connected triangulations of a quadrilateral up to orientation-preserving isomorphisms with n interior nodes.

%H Andrew Howroyd, <a href="/A341924/b341924.txt">Table of n, a(n) for n = 1..500</a>

%Y Column k=4 of A341923.

%K nonn

%O 1,2

%A _Andrew Howroyd_, Feb 26 2021