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A011904 [ n(n-1)(n-2)/22 ]. 0

%I #14 Jun 13 2023 08:44:02

%S 0,0,0,0,1,2,5,9,15,22,32,45,60,78,99,124,152,185,222,264,310,362,420,

%T 483,552,627,709,797,893,996,1107,1225,1352,1488,1632,1785,1947,2119,

%U 2300,2492,2694,2907,3130,3365

%N [ n(n-1)(n-2)/22 ].

%H <a href="/index/Rec#order_14">Index entries for linear recurrences with constant coefficients</a>, signature (3, -3, 1, 0, 0, 0, 0, 0, 0, 0, 1, -3, 3, -1).

%F G.f.: (x^4 (1-x+2 x^2-x^3+x^4-x^5+2 x^6-x^8+x^9))/((-1+x)^4 (1+x+x^2+x^3+x^4+x^5+x^6+x^7+x^8+x^9+x^10)). - _Peter J. C. Moses_, Jun 02 2014

%t Table[Floor[(n(n-1)(n-2))/22],{n,0,50}] (* _Harvey P. Dale_, Sep 30 2019 *)

%K nonn

%O 0,6

%A _N. J. A. Sloane_.

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Last modified April 30 09:09 EDT 2024. Contains 372131 sequences. (Running on oeis4.)