OFFSET
0,2
REFERENCES
J. Goldman and G.-C. Rota, The number of subspaces of a vector space, pp. 75-83 of W. T. Tutte, editor, Recent Progress in Combinatorics. Academic Press, NY, 1969.
I. P. Goulden and D. M. Jackson, Combinatorial Enumeration. Wiley, NY, 1983, p. 99.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351.
LINKS
Robert Israel, Table of n, a(n) for n = 0..36
M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351. (Annotated scanned copy)
MAPLE
with(QDifferenceEquations):
seq(eval(QSimpComb(QBinomial(2*n, n, q)), q=5), n=0..12); # Robert Israel, Feb 01 2018
MATHEMATICA
Table[QBinomial[2n, n, 5], {n, 0, 10}] (* Harvey P. Dale, Jun 10 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved