1,2

a(n)=sum(abs(A120078(n,k)),k=1..n), n>=1.

Signed row sums conjectured to be A027451(n), which als appears in the denominator of o.g.f.s. G(x, n) given in A120078 as numbers A(n).

Sequence in context: A082578 A082698 A093170 this_sequence A087567 A136629 A133697

Adjacent sequences: A120076 A120077 A120078 this_sequence A120080 A120081 A120082

nonn,easy

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Jul 20 2006