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A059290 a(n) = round(1/144*n^2*(n + 3)). 2

%I #11 Jan 05 2017 02:55:41

%S 0,0,0,0,1,1,2,3,5,7,9,12,15,19,23,28,34,40,47,55,64,74,84,96,108,122,

%T 136,152,169,187,206,227,249,272,297,323,351,380,411,444,478,514,551,

%U 591,632,675,720,767,816,867,920,975,1033,1092,1154,1218

%N a(n) = round(1/144*n^2*(n + 3)).

%D L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 120, see P(n,4).

%H Harry J. Smith, <a href="/A059290/b059290.txt">Table of n, a(n) for n = 0..1000</a>

%t Table[Round[1/144*n^2*(n + 3)], {n, 0, 50}] (* _G. C. Greubel_, Jan 04 2017 *)

%o (PARI) { default(realprecision, 100); for (n = 0, 1000, write("b059290.txt", n, " ", round(n^2*(n + 3)/144)); ) } \\ _Harry J. Smith_, Jun 25 2009

%Y Cf. A001400, A059291.

%K nonn

%O 0,7

%A _N. J. A. Sloane_, Jan 25 2001

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)