cp's OEIS Frontend

A143354 Triangle read by rows, (A051731)^4 * A128407, 1<=k<=n.

%I A143354 #6 Jul 24 2024 09:46:20
%S A143354 1,4,-1,4,0,-1,10,-4,0,0,4,0,0,0,-1,16,-4,-4,0,0,1,4,0,0,0,0,0,-1,20,
%T A143354 -10,0,0,0,0,0,0,10,0,-4,0,0,0,0,0,0,16,-4,0,0,-4,0,0,0,0,1,4,0,0,0,0,
%U A143354 0,0,0,0,0,40,-16,-10,0,0,4,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,-1
%N A143354 Triangle read by rows, (A051731)^4 * A128407, 1<=k<=n.
%C A143354 Left border = A007426.
%C A143354 Right border = mu(n), A008683.
%C A143354 Row sums = A007425: (1, 3, 3, 6, 3, 9,...).
%F A143354 Triangle read by rows, (A051731)^4 * A128407, 1<=k<=n
%e A143354 First few rows of the triangle =
%e A143354 1;
%e A143354 4, -1;
%e A143354 4, 0, -1;
%e A143354 10, -4, 0, 0;
%e A143354 4, 0, 0, 0, 0, -1;
%e A143354 16, -4, -4, 0, 0, 1;
%e A143354 4, 0, 0, 0, 0, 0, -1;
%e A143354 10, -10, 0, 0, 0, 0, 0, 0;
%e A143354 ...
%Y A143354 Cf. A051731, A128407, A007425, A007426, A008683.
%K A143354 tabl,sign
%O A143354 1,2
%A A143354 _Gary W. Adamson_, Aug 10 2008