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 A140699 Triangle read by rows: A054524*A140256. 1

%I

%S 1,2,-1,3,0,-1,2,-2,0,0,5,0,0,0,-1,1,-3,-2,0,0,1,7,0,0,0,0,0,-1,2,-2,

%T 0,0,0,0,0,0,3,0,-3,0,0,0,0,0,0,1,-5,0,0,-2,0,0,0,0,1,11,0,0,0,0,0,0,

%U 0,0,0,-1,1,-1,-2,0,0,2,0,0,0,0,0,0,13,0,0,0,0,0,0,0,0,0,0,0,-1,1,-7,0,0,0,0,-2,0,0,0,0,0,0,1,1,0,-5,0,-3,0,0,0,0,0,0,0

%N Triangle read by rows: A054524*A140256.

%C Row products are A140700. Similar to table A140256. Can perhaps be seen as taking the moebius function of A126988 times the mangoldt function of A126988.

%F a(n) = A054524*A140256

%e 1;

%e 2, -1;

%e 3, 0, -1;

%e 2, -2, 0, 0;

%e 5, 0, 0, 0, -1;

%e 1, -3, -2, 0, 0, 1;

%e 7, 0, 0, 0, 0, 0, -1;

%e 2, -2, 0, 0, 0, 0, 0, 0;

%e 3, 0, -3, 0, 0, 0, 0, 0, 0;

%e 1, -5, 0, 0, -2, 0, 0, 0, 0, 1;

%e 11,0, 0, 0, 0, 0, 0, 0, 0, 0, -1;

%Y Cf. A054524, A140256, A126988, A140700.

%K sign,tabl

%O 1,2

%A Mats O. Granvik and _Gary W. Adamson_, May 24 2008

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Last modified January 15 18:52 EST 2019. Contains 319170 sequences. (Running on oeis4.)