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A027972 T(n,2n-10), T given by A027960. 1

%I

%S 1,4,11,29,76,199,518,1324,3278,7784,17643,38138,78753,155793,296248,

%T 543333,964239,1660748,2783499,4550843,7273394,11385571,17485634,

%U 26385946,39175444,57296576,82639259,117654736,165492559

%N T(n,2n-10), T given by A027960.

%F Sequence satisfies a 10-degree polynomial approximating A002878.

%F G.f. ( x^5*(-1+7*x-22*x^2+37*x^3-32*x^4-x^5+32*x^6-37*x^7+22*x^8-7*x^9+x^10) ) / ( (x-1)^11 ). - R. J. Mathar, Jan 30 2011

%F a(n) = -76 +183941*n/2520 +386899*n^3/36288 -1747657*n^2/50400 -831241*n^4/362880 +11887*n^5/34560 -5807*n^6/172800 +41*n^7/24192 +n^8/60480 -n^9/145152 +n^10/3628800. - R. J. Mathar, Jan 30 2011

%Y A column of triangle A026998.

%K nonn

%O 5,2

%A _Clark Kimberling_

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Last modified April 17 09:05 EDT 2014. Contains 240634 sequences.