A124895 Triangle read by rows, 1<=k<=n: T(n,k) = mu(n^2 + k^2) with mu=A008683.

-1, -1, 0, 1, -1, 0, -1, 0, 0, 0, 1, -1, 1, -1, 0, -1, 0, 0, 0, -1, 0, 0, -1, 1, 1, 1, 1, 0, 1, 0, -1, 0, -1, 0, -1, 0, 1, 1, 0, -1, 1, 0, -1, 1, 0, -1, 0, -1, 0, 0, 0, -1, 0, -1, 0, 1, 0, -1, -1, 1, -1, -1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1, 0, -1, -1, 1, 1, 1, 1, 1, -1, 0, -1, -1, -1, 0, -1, 0, 1, 0, 1, 0, 0, 0, -1, 0, -1, 0, 1, 0, 1, -1, 0, -1, 0, 0

Offset

1,1

Comments

T(n,k) = A008683(A070216(n,k));

T(n,1)=A124897(1);T(A049533(n),1)<>0; T(A049532(n),1)=0;

T(n,n) = -A000007(n-1);

A124896(n) = Sum(abs(T(n,k)): 1<=k<=n), row sums of absolute values.

Links

Table of n, a(n) for n=1..111.

Crossrefs

Sequence in context: A342991 A285898 A077049 * A089885 A190233 A143242

Adjacent sequences: A124892 A124893 A124894 * A124896 A124897 A124898

Keyword

sign,tabl

Author

Reinhard Zumkeller, Nov 12 2006

Status

approved