login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

T(n+3,3) from table A045912 of characteristic polynomial of negative Pascal matrix.
(Formerly M5206)
3

%I M5206 #16 Sep 08 2017 05:16:46

%S 1,29,626,13869,347020,9952274,321541977,11416400590,435869304863,

%T 17605464402686,743624059688891,32572923621373010,1470621027107356485,

%U 68120063089374617281,3225635202844511176442,155695310201341829770911

%N T(n+3,3) from table A045912 of characteristic polynomial of negative Pascal matrix.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H W. F. Lunnon, <a href="http://www.fq.math.ca/Scanned/15-3/lunnon.pdf">The Pascal matrix</a>, Fib. Quart. vol. 15 (1977) pp. 201-204.

%e 1 + 29*x + 626*x^2 + 13869*x^3 + 347020*x^4 + 9952274*x^5 + 321541977*x^6 + ...

%o (PARI) {a(n) = if( n<0, 0, polcoeff( charpoly( matrix( n+3, n+3, i, j, -binomial( i+j-2, i-1))), 3))} /* _Michael Somos_, Jul 10 2002 */

%Y Cf. A045912, A006134, A006135.

%K nonn

%O 0,2

%A _N. J. A. Sloane_.

%E Edited by _Michael Somos_, Jul 19 2002