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Search: id:A060716
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| A060716 |
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Singular n X n matrices over GF(4). |
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+0
2
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| 1, 76, 80704, 1333866496, 350423140532224, 1470575268235571101696, 98701955014599602193609785344, 105983992373769699116787162453121171456, 1820806479557691387021584007269972378727328251904
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,40
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FORMULA
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For n >= 1 a(n) = 4^(n^2) - A053291(n) = 4^(n^2) - (4^n - 1)(4^n -4)...(4^n - 4^(n-1))
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MAPLE
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for n from 1 to 15 do printf(`%d, `, 4^(n^2) - product(4^n-4^j, j=0..n-1)) od:
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PROGRAM
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(PARI) { for (n=1, 40, write("b060716.txt", n, " ", 4^(n^2) - prod(j=0, n - 1, 4^n - 4^j)); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 10 2009]
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CROSSREFS
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A053291.
Sequence in context: A028480 A111682 A033521 this_sequence A116255 A136609 A116246
Adjacent sequences: A060713 A060714 A060715 this_sequence A060717 A060718 A060719
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KEYWORD
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nonn
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AUTHOR
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Avi Peretz (njk(AT)netvision.net.il), Apr 21 2001
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EXTENSIONS
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More terms from James A. Sellers (sellersj(AT)math.psu.edu), Apr 24 2001
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