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Search: id:A060720
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| A060720 |
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Singular n X n matrices over GF(5). |
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+0
2
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| 1, 145, 465125, 36523890625, 71408263876953125, 3487439806366851806640625, 4257301552309879646778106689453125, 129923587901397533566226400434970855712890625
(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,...,37
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FORMULA
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For n >= 1 a(n) = 5^(n^2) - A053292(n) = 5^(n^2) - (5^n - 1)(5^n -5)...(5^n - 5^(n-1))
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MAPLE
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for n from 1 to 15 do printf(`%d, `, 5^(n^2) - product(5^n-5^j, j=0..n-1)) od:
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PROGRAM
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(PARI) { for (n=1, 37, write("b060720.txt", n, " ", 5^(n^2) - prod(j=0, n - 1, 5^n - 5^j)); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 10 2009]
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CROSSREFS
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A053292.
Sequence in context: A012813 A018232 A097730 this_sequence A015081 A015055 A166071
Adjacent sequences: A060717 A060718 A060719 this_sequence A060721 A060722 A060723
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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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