Search: id:A005154 Results 1-1 of 1 results found. %I A005154 M1992 %S A005154 1,2,10,268,195472,104310534400,29722161121961969778688,2413441860555924454205324333893477339897004032, %T A005154 15913289476042091181119569948276231488639535067163704670852319029791565485433738366445158400 %N A005154 Number of stable matchings. %C A005154 Lower bound for maximal number of stable matchings (or marriages) possible with 2^n men and 2^n women for suitable preference ordering. %D A005154 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %D A005154 D. Gusfield and R. W. Irving, The Stable Marriage Problem: Structure and Algorithms. MIT Press, 1989, p. 25. %D A005154 R. W. Irving and P. Leather, The complexity of counting stable marriages, SIAM J. Computing 15 (1986), 655-667. [The sequence is v_n =g(2^n), where g(n) appears on page p. 657.] %D A005154 D. E. Knuth, Mariages Stables, Presses Univ. de Montreal, 1976 (gives 10 matchings illustrating a(2)). %D A005154 J. C. Lagarias, J. H. Spencer and J. P. Vinson, Counting dyadic equipartitions of the unit square, Discrete Math. 257 (2002), 481-499. (Sequence is mentioned on fourth page.) %D A005154 E. G. Thurber, Concerning the maximum number of stable matchings ..., Discrete Math., 248 (2002), 195-219 (see Eq. (1)). %F A005154 a_0 = 1, a_1 = 2; a_n = 3*a_{n-1}^2 - 2*a_{n-2}^4. %p A005154 A005154 := proc(n) option remember; if n <= 1 then n+1 else 3*A005154(n-1)^2-2*A005154(n-2)^4; fi; end; %Y A005154 Sequence in context: A001528 A088310 A134473 this_sequence A074056 A144288 A003047 %Y A005154 Adjacent sequences: A005151 A005152 A005153 this_sequence A005155 A005156 A005157 %K A005154 nonn,easy,nice %O A005154 0,2 %A A005154 N. J. A. Sloane (njas(AT)research.att.com). Search completed in 0.001 seconds