27166

Appears in sequences

• Apply partial sum operator thrice to primes.at n=20A014150
• Number of integers k such that phi(k) = 10^n.at n=25A072074
• Total number of parts in all partitions of n into relatively prime parts.at n=26A085410
• a(n) = 94*n^2.at n=17A174337
• Number of nondecreasing -n..n vectors of length 3 whose dot product with some nonincreasing -n..n vector equals 3.at n=27A226400
• Number T(n,k) of isoscent sequences of length n with exactly k descents; triangle T(n,k), n>=0, 0<=k<=n+2-ceiling(2*sqrt(n+1)), read by rows.at n=28A242352
• Number of isoscent sequences of length n with exactly one descent.at n=7A243474
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 491", based on the 5-celled von Neumann neighborhood.at n=32A272541
• Numbers k such that sigma(k) = psi(k) + tau(k)^2.at n=29A390296