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 A181044 The number of ways to compute the determinant of an n X n matrix using cofactor expansion. 0
 1, 4, 384, 173946175488, 1592481597212922365761871004823571903636713118111555911680 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 REFERENCES Robert A. Beeler, A Note on the number of ways to compute a determinant using cofactor expansion, Bull. Inst. Combin. Appl., 63 (2011), 36-38. LINKS FORMULA a(n) = 2*n*(a(n-1))^n. a(n) = 2*n*2^n*2^{n(n-1)}*...*2^{n(n-1)}*...*2^{n(n-1)...(4)(3)}*(n-1)^n*(n-2)^{n(n-1)}*...*2^{n(n-1)...(4)(3)}. 4^{n!(e-2)} < a(n) < (2e)^{n!(e-2)}, a(n) ~ 3.009^n!. [Robert A. Beeler, Oct 11 2010] CROSSREFS Sequence in context: A003753 A193130 A006237 * A116031 A115049 A202172 Adjacent sequences:  A181041 A181042 A181043 * A181045 A181046 A181047 KEYWORD nonn AUTHOR Robert A. Beeler, Sep 30 2010 STATUS approved

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