OFFSET
0,21
COMMENTS
EXAMPLE
Triangle begins
0;
0, 1;
0, 1, 0;
0, 0, 0, -1;
0, 1, 0, 0, 0;
0, 0, 0, -1, -1, -2;
...
MATHEMATICA
Flatten[Table[PrimePi[n+k]-PrimePi[n]-PrimePi[k], {n, 0, 20}, {k, 0, n}]] (* Harvey P. Dale, Feb 22 2012 *)
CROSSREFS
KEYWORD
AUTHOR
EXTENSIONS
More terms from James A. Sellers, Dec 22 1999
STATUS
approved