OFFSET
1,2
EXAMPLE
Triangle begins:
{1},
{2, 3},
{6, 9, 12},
{24, 36, 48, 60},
{120, 180, 240, 300, 360},
{720, 1080, 1440, 1800, 2160, 2520},
{5040, 7560, 10080, 12600, 15120, 17640, 20160}
MAPLE
T:=(n, k)->(k+1)*n!/2: for n from 1 to 10 do seq(T(n, k), k=1..n) od; # yields sequence in triangular form
MATHEMATICA
t[n_, m_] := (m + 1)*n!/2; a = Table[Table[t[n, m], {m, 1, n}], {n, 1, 10}]; Flatten[a]
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Roger L. Bagula, Nov 09 2006
EXTENSIONS
Edited by N. J. A. Sloane, Dec 03 2006
STATUS
approved