59845

Appears in sequences

• The Lambda triangle.at n=3A160487
• First left hand column of the Lambda triangle A160487.at n=2A160488
• G.f. satisfies: A(x) = Sum_{n>=0} x^(n(n+1)/2) * (A(x) + x)^n.at n=15A177487
• Number of n X 3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 5.at n=4A264691
• T(n,k)=Number of nXk arrays of permutations of 0..n*k-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 5.at n=25A264692