OFFSET
0,2
FORMULA
T(n,k) = T(n,k-1)+1, k>=1.
EXAMPLE
1;
3;
5,6;
9,10;
13,14;
17,18;
21,22,23;
27,28,29;
33,34,35;
39,40,41;
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Paul Curtz, Nov 02 2009
STATUS
approved