OFFSET
0,5
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 2 1
1 3 3 1
1 5 10 4 1
1 6 36 35 5 1
1 9 310 4630 218 6 1
...
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Sep 01 2011
STATUS
approved