OFFSET
1
COMMENTS
n-th row sum gives the number of k in [0,n] for which <n*r>+<k*r> > 1; see A194662.
Triangles of this sort and their row sums are sampled by the following sequences:
EXAMPLE
First 13 rows:
1
0 0
1 1 1
1 0 1 0
0 0 0 0 0
1 0 1 1 0 1
0 0 1 0 0 1 0
1 1 1 1 1 1 1 1
1 0 1 1 0 1 0 1 1
0 0 1 0 0 0 0 1 0 0
1 1 1 1 0 1 1 1 1 0 1
1 0 1 0 0 1 0 1 0 0 1 0
0 0 0 0 0 0 0 0 0 0 0 0 0
MATHEMATICA
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Clark Kimberling, Sep 01 2011
STATUS
approved