22816

Appears in sequences

• a(n) = (n+1)*(2*n+1)*(3*n+1).at n=15A011199
• dot_product(n,n-1,...2,1)*(7,8,...,n,1,2,3,4,5,6).at n=39A026066
• Expansion of e.g.f. (1+x)*exp(3*x)*cosh(x).at n=7A082307
• Row sums in A083167.at n=31A083170
• Number of 4-step knight's tours on an (n+2) X (n+2) board summed over all starting positions.at n=8A186853
• Triangle T(n,k) represents the coefficients of (x^16*d/dx)^n, where n=1,2,3,...; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297.at n=6A223518
• Sum_{i=1..n} Sum_{j=1..n} (i OR j), where OR is the binary logical OR operator.at n=31A258438
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 3", based on the 5-celled von Neumann neighborhood.at n=31A269912
• Expansion of 1/(1 - Sum_{k>=2} (1 - floor(2/d(k)))*x^k), where d(k) is the number of divisors (A000005).at n=47A280544
• a(n) = 90*binomial(n,6) + 18*binomial(n,4) + 3*binomial(n,2) + 1.at n=10A382084