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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A169996 Number of 2n-vertex 4-dissections on a cylinder. 1 3, 112, 1902, 23396, 243698, 2299064 (list; graph; refs; listen; history; text; internal format) OFFSET 3,1 LINKS Table of n, a(n) for n=3..8. Juanjo Rué, Enumeration and limit laws of dissections on a cylinder, Discrete Math., 310 (2010), 2519-2541. FORMULA The reference gives an explicit g.f. CROSSREFS Cf. A169997. Sequence in context: A128684 A292336 A037116 * A054330 A024043 A199640 Adjacent sequences: A169993 A169994 A169995 * A169997 A169998 A169999 KEYWORD nonn,more AUTHOR N. J. A. Sloane, Aug 29 2010 STATUS approved

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Last modified August 18 20:16 EDT 2024. Contains 375274 sequences. (Running on oeis4.)