30891

Appears in sequences

• Number of series-reduced planted trees with n+9 nodes and 4 internal nodes.at n=40A001860
• Expansion of 1/((1-4x)(1-5x)(1-10x)).at n=4A018912
• Second elementary symmetric function of the first n terms of (2,2,3,3,4,4,5,5...).at n=27A203299
• Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array.at n=19A220011
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 563", based on the 5-celled von Neumann neighborhood.at n=30A272941
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 605", based on the 5-celled von Neumann neighborhood.at n=30A273177
• a(n) = n * (7*binomial(n, 2) + 1).at n=21A329530
• a(n) is the number of positive integer solutions of n*x*y*z*v*w = (x + n) * (y + n) * (z + n) * (v + n) * (w + n), x <= y <= z <= v <= w.at n=8A381644
• Consecutive states of the linear congruential pseudo-random number generator 20403*s mod 2^15 when started at s=1.at n=3A384196