23930

Appears in sequences

• Number of labeled digraphs with n arcs for which every vertex has indegree at least one and outdegree at least one.at n=7A121933
• Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.at n=5A196481
• Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.at n=3A196483
• T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.at n=39A196485
• T(n,k)=Number of nXk 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,0,2,1,4 for x=0,1,2,3,4.at n=41A196485
• Number of Carlitz compositions of n with exactly seven descents.at n=5A241697
• Expansion of g.f. Sum_{n>=1} q^n/(1-q^(2*n)-q^(3*n)).at n=39A368689