OFFSET
0,3
COMMENTS
Column 1 yields A003418. a(n,n) = 2^n. - Emeric Deutsch, Feb 03 2006
EXAMPLE
Triangle begins:
1;
1, 2;
1, 6, 4;
1, 12, 210, 8;
1, 60, 27720, 5460, 16;
...
The row for n = 3 is
1....3..........3.......1
1 lcm(2*3*4) lcm(5*6*7) 8 ====> 1 12 210 8.
MAPLE
T:=proc(n, k) if n=0 and k=0 then 1 else lcm(seq(j, j=1+sum(binomial(n, i), i=0..k-1)..sum(binomial(n, i), i=0..k))) fi end: for n from 0 to 7 do seq(T(n, k), k=0..n) od; # yields sequence in triangular form - Emeric Deutsch, Feb 03 2006
CROSSREFS
KEYWORD
AUTHOR
Amarnath Murthy, Sep 07 2005
EXTENSIONS
More terms from Emeric Deutsch, Feb 03 2006
STATUS
approved