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A015210 Sum of Gaussian binomial coefficients for q=19. 1

%I #21 Mar 07 2024 09:56:46

%S 1,2,22,764,152404,99869288,377566978168,4699193672889776,

%T 337505849373783995536,79809726992391397235470112,

%U 108909145140488785290568540059232,489318942025571053898957586140666992064,12686855492437023425546597742222336158113232704

%N Sum of Gaussian binomial coefficients for q=19.

%D J. Goldman and G.-C. Rota, The number of subspaces of a vector space, pp. 75-83 of W. T. Tutte, editor, Recent Progress in Combinatorics. Academic Press, NY, 1969.

%D I. P. Goulden and D. M. Jackson, Combinatorial Enumeration. Wiley, NY, 1983, p. 99.

%D M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351.

%H Vincenzo Librandi, <a href="/A015210/b015210.txt">Table of n, a(n) for n = 0..50</a>

%H Kent E. Morrison, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL9/Morrison/morrison37.html">Integer Sequences and Matrices Over Finite Fields</a>, Journal of Integer Sequences, Vol. 9 (2006), Article 06.2.1.

%F a(0) = 1, a(1) = 2, a(n) = 2*a(n-1) + a(n-2)*((19^(n-1)) - 1). - _Vincenzo Librandi_, Nov 02 2012

%t Total/@Table[QBinomial[n, m, 19], {n, 0, 20}, {m, 0, n}] (* _Vincenzo Librandi_, Nov 02 2012 *)

%Y Row sums of triangle A022183.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, _Olivier GĂ©rard_

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Last modified April 25 07:41 EDT 2024. Contains 371964 sequences. (Running on oeis4.)