2,2
Numerators of sequence a[ 2, n ] in (a[ i, j ])^3 where a[ i, j ] = S(i, j)/BellNumber(i) if j<=i, 0 if j>i
Sequence in context: A063332 A063338 A156884 * A203626 A194613 A079196
Adjacent sequences: A027508 A027509 A027510 * A027512 A027513 A027514
nonn
Olivier Gerard (olivier.gerard(AT)gmail.com)