A341924 Number of 3-connected triangulations of a quadrilateral up to orientation-preserving isomorphisms with n interior nodes.

1, 2, 10, 60, 386, 2652, 18914, 139264, 1048947, 8057026, 62893270, 497840520, 3988465676, 32292955800, 263910215250, 2174723058816, 18053970236196, 150883196364072, 1268622177683432, 10725273649776860, 91130026089055954, 777875145348140268, 6667969516814183630

Offset

1,2

Links

Andrew Howroyd, Table of n, a(n) for n = 1..500

Crossrefs

Column k=4 of A341923.

Sequence in context: A025188 A114620 A173613 * A350665 A004981 A214764

Adjacent sequences: A341921 A341922 A341923 * A341925 A341926 A341927

Keyword

nonn

Author

Andrew Howroyd, Feb 26 2021

Status

approved