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A027477 Square of lower triangular normalized first kind Stirling matrix. 4
1, 3, 1, 23, 12, 1, 330, 215, 30, 1, 7604, 5700, 1035, 60, 1, 256620, 212464, 45675, 3535, 105, 1, 11923260, 10645152, 2582209, 241080, 9730, 168, 1, 729524880, 691560092, 183962268, 19661649, 970200, 23058, 252, 1, 56840099904 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

Numerators of lower triangle of (a[ i, j ])^2 where a[ i, j ] = s(i, j)/i! if j<=i, 0 if j>i

CROSSREFS

Sequence in context: A193632 A190962 A010291 * A137330 A138654 A175289

Adjacent sequences:  A027474 A027475 A027476 * A027478 A027479 A027480

KEYWORD

nonn,tabl

AUTHOR

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

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.