OFFSET
0,9
COMMENTS
Row n contains 1+floor(n/5) terms.
Row sums yield A137356.
REFERENCES
D. E. Knuth, The Art of Computer Programming, Vol. 4A, Section 7.1.4.
MAPLE
T:=proc(n, k) options operator, arrow: binomial(n-2*k, 3*k) end proc: for n from 0 to 20 do seq(T(n, k), k=0..(1/5)*n) end do; # yields sequence in triangular form
MATHEMATICA
Flatten[Table[Binomial[n-2k, 3k], {n, 0, 20}, {k, 0, Floor[n/5]}]] (* Harvey P. Dale, Oct 14 2012 *)
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Emeric Deutsch, May 10 2008
STATUS
approved