login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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

Table of n, a(n) for n=1..5.

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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified October 20 05:42 EDT 2017. Contains 293601 sequences.