OFFSET
1,8
EXAMPLE
t(5,3) = lcm(Sum_{k=1..4} t(k,3), Sum_{j=1..2} t(5,j)) = lcm(1+2+3+30, 1+8) = lcm(36,9) = 36.
MATHEMATICA
t[m_, n_] := t[m, n] = If[m == 1 || n == 1, 1, LCM[Sum[t[k, n], {k, m - 1}], Sum[t[m, j], {j, n - 1}]]]; Flatten@Table[t[d + 1 - j, j], {d, 11}, {j, d}] (* Ray Chandler, Nov 19 2006 *)
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Leroy Quet, Nov 12 2006
EXTENSIONS
Extended by Ray Chandler, Nov 19 2006
STATUS
approved