OFFSET
1,2
COMMENTS
FORMULA
T(n, k)=(n+k)!/k! (0<=k<=n-1; n>=1).
EXAMPLE
1
2 6
6 24 60
24 120 360 840
120 720 2520 6720 15120
720 5040 20160 60480 151200 332640
5040 40320 181440 604800 1663200 3991680 8648640
40320 362880 1814400 6652800 19958400 51891840 121080960 259459200
MAPLE
T:=proc(n, k) if k<n then (n+k)!/k! else 0 fi end: for n from 1 to 9 do seq(T(n, k), k=0..n-1) od; # yields sequence in triangular form
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Amarnath Murthy, Apr 18 2005
EXTENSIONS
More terms from Emeric Deutsch, Apr 18 2005
STATUS
approved