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A258712 Motzkin numbers A001006 read mod 5. 9


%S 1,1,2,4,4,1,1,2,3,0,3,3,1,0,4,2,2,4,2,4,4,4,3,0,2,1,1,2,4,4,1,1,2,3,

%T 0,3,3,1,0,4,2,2,4,2,4,4,4,3,4,3,3,3,1,2,2,3,3,1,4,0,4,4,3,0,2,1,1,2,

%U 1,2,2,2,4,3,3,2,2,4,3,3,2,2,4,1,0,1,1,2,0

%N Motzkin numbers A001006 read mod 5.

%H Anders Hyllengren, <a href="/A258710/a258710.pdf">Letter to N. J. A. Sloane, Oct 04 1985</a>

%o (PARI) a001006(n) = polcoeff((1-x-sqrt((1-x)^2-4*x^2+x^3*O(x^n)))/(2*x^2), n);

%o vector(200, n, n--; a001006(n) % 5) \\ _Altug Alkan_, Oct 23 2015

%Y Cf. A001006.

%Y Motzkin numbers A001006 read mod 2,3,4,5,6,7,8,11: A039963, A039964, A299919, A258712, A299920, A258711, A299918, A258710.

%K nonn

%O 0,3

%A _N. J. A. Sloane_, Jun 14 2015

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Last modified January 19 16:49 EST 2019. Contains 319309 sequences. (Running on oeis4.)