0,3

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.

M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351.

Sequence in context: A121754 A120107 A015462 this_sequence A126976 A045159 A121002

Adjacent sequences: A006112 A006113 A006114 this_sequence A006116 A006117 A006118

nonn

njas