OFFSET
0,12
COMMENTS
See Knuth Vol. 4A page 737 for precise definition.
REFERENCES
D. E. Knuth, The Art of Computer Programming, vol. 4A, Combinatorial Algorithms, Section 7.2.1.3 (p. 737).
EXAMPLE
Triangle begins: 1
1 1
1 1 1
1 1 1 1
1 2 1 1 1
1 2 3 1 1 1
1 3 46 4 1 1 1
...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Sep 01 2011
STATUS
approved