1,3

Numerators of sequence a[ n, n ] in (a[ i, j ])^2 where a[ i, j ] = S(i, j)/BellNumber(i) if j<=i, 0 if j>i

Sequence in context: A074935 A078239 A083113 this_sequence A094877 A006560 A088251

Adjacent sequences: A027495 A027496 A027497 this_sequence A027499 A027500 A027501

nonn

Olivier Gerard (ogerard(AT)ext.jussieu.fr)