OFFSET
0,5
COMMENTS
Row sums are:
{1, 2, 33, 1444, 136925, 22668246, 6266025367, 2645435681288,
1628649184821129, 1398189017071123210, 1620879822232935264011,...}.
FORMULA
t(n,m)=n!*Eulerian[n + 1, m]^2 - n! + 1
EXAMPLE
{1},
{1, 1},
{1, 31, 1},
{1, 721, 721, 1},
{1, 16201, 104521, 16201, 1},
{1, 389761, 10944361, 10944361, 389761, 1},
{1, 10367281, 1021305601, 4202679601, 1021305601, 10367281, 1},
{1, 307480321, 92886433921, 1229523926401, 1229523926401, 92886433921, 307480321, 1},
{1, 10160760961, 8604032492161, 313900826601601, 983619145111681, 313900826601601, 8604032492161, 10160760961, 1},
{1, 372375843841, 830510972565121, 75188647770445441, 623074977416707201, 623074977416707201, 75188647770445441, 830510972565121, 372375843841, 1},
{1, 15042446496001, 84543977513318401, 17619128067859718401, 344122240288359456001, 897227967480577286401, 344122240288359456001, 17619128067859718401, 84543977513318401, 15042446496001, 1}
MATHEMATICA
<< DiscreteMath`Combinatorica`
t[n_, m_] = n!*Eulerian[n + 1, m]^2 - n! + 1;
Table[Table[t[n, m], {m, 0, n}], {n, 0, 10}];
Flatten[%]
CROSSREFS
KEYWORD
AUTHOR
Roger L. Bagula, Mar 27 2010
STATUS
approved