3,1

Numerators of sequence a[ 3, 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: A012803 A135394 A010046 this_sequence A119695 A119698 A112103

Adjacent sequences: A027506 A027507 A027508 this_sequence A027510 A027511 A027512

nonn

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