0,2

a(n)=sum(|A112692(k, m)|, m=0..((k+1)*(k+2)/2)-1), k>=0.

Signed row sums A112693.

Sequence in context: A060704 A132093 A016101 this_sequence A079914 A051790 A119547

Adjacent sequences: A112691 A112692 A112693 this_sequence A112695 A112696 A112697

nonn,easy

Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Oct 14 2005