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A220450 A220449(n) mod 19. 2

%I

%S 1,1,9,10,0,11,11,2,6,12,15,9,0,17,15,4,1,17,2,17,17,1,18,0,16,16,15,

%T 7,14,8,1,0,4,8,11,17,4,15,4,4,17,2,0,6,6,8,5,10,3,17,0,11,3,16,4,11,

%U 8,11,11,4,15,0,7,7,3,9,18,13,4,0,16,13,6,11,16,3,16,16,11,8,0,5,5,13,1,2,12

%N A220449(n) mod 19.

%H V. H. Moll, <a href="http://www.tulane.edu/~vhm/papers_html/xn-final.pdf">An arithmetic conjecture on a sequence of arctangent sums</a>, 2012.

%Y Cf. A220449.

%K nonn

%O 1,3

%A _N. J. A. Sloane_, Dec 22 2012

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Last modified September 21 17:46 EDT 2019. Contains 327273 sequences. (Running on oeis4.)