2,2

Numerators of sequence a[ 2, n ] in (a[ i, j ])^4 where a[ i, j ] = S(i, j)/BellNumber(i) if j<=i, 0 if j>i

Adjacent sequences: A027511 A027512 A027513 this_sequence A027515 A027516 A027517

Sequence in context: A131215 A096525 A142554 this_sequence A137563 A090177 A120719

nonn

Olivier Gerard (olivier.gerard(AT)gmail.com)