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A022244
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Gaussian binomial coefficients [ n,4 ] for q = 8.
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1
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1, 4681, 19477641, 79936505481, 327499862955657, 1341480367403783817, 5494724540479236953737, 22506402447071849965115017, 92186229916592298695053497993, 377594800550975709003441429239433, 1546628304496854696033468524851058313
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OFFSET
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4,2
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REFERENCES
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F. J. MacWilliams and N. J. A. Sloane, The Theory of Error-Correcting Codes, Elsevier-North Holland, 1978, p. 698.
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LINKS
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FORMULA
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a(n) = Product_{i=1..4} (8^(n-i+1)-1)/(8^i-1), by definition. - Vincenzo Librandi, Aug 05 2016
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MATHEMATICA
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PROG
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(Sage) [gaussian_binomial(n, 4, 8) for n in range(4, 15)] # Zerinvary Lajos, May 27 2009
(Magma) r:=4; q:=8; [&*[(1-q^(n-i+1))/(1-q^i): i in [1..r]]: n in [r..20]]; // Vincenzo Librandi, Aug 05 2016
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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