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A093605 Numerators of sqrt(2) term in expected number of complex eigenvalues in an n X n real matrix with entries chosen from a standard normal distribution. 0
0, 1, 11, 13, 211, 271, 1919, 2597, 67843, 95259, 588933, 850251, 10098967, 14904091, 85806311, 128927573, 5792144099, 8834766227, 48605936617, 75096287791, 812156618077, 1268822838961, 6760265315081, 10665172132163 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

COMMENTS

Related to factored form of Beta[ -1,n,3/2].

LINKS

Eric Weisstein's World of Mathematics, Random Matrix

FORMULA

a(n+1)=sum{k=0..floor(n/2), C(2(n-2k),n-2k)*16^k}/sum{k=0..n, mod(C(n,k),2)}; - Paul Barry (pbarry(AT)wit.ie), Oct 26 2007

EXAMPLE

0, 2-sqrt(2), 2-sqrt(2)/2, 4-(11*sqrt(2))/8, 4-(13*sqrt(2))/16, 6-(211*sqrt(2))/128, ...

CROSSREFS

Cf. A046161, A052928.

Sequence in context: A144375 A140969 A064759 * A155967 A111070 A110115

Adjacent sequences:  A093602 A093603 A093604 * A093606 A093607 A093608

KEYWORD

nonn,frac

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), Apr 03, 2004

EXTENSIONS

More terms from Max Alekseyev (maxale(AT)gmail.com), Apr 22 2010

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.