19366

Appears in sequences

• Number of arrangements of 3 nonzero numbers x(i) in -n..n with the sum of div(x(i),x(i+1)), where div(a,b)=a/b produces the integer quotient implying a nonnegative remainder, equal to zero.at n=26A190072
• Partial sums of the second power of arithmetic derivative function A003415.at n=38A231864
• Number of partitions of 2n into exactly 5 parts.at n=42A256309
• Number of partitions of 3n into exactly 5 parts.at n=28A256314
• Number of partitions of 4n into exactly 5 parts.at n=21A256316
• Number of partitions of n into parts that contain primes to odd powers only (A002035).at n=58A290369
• Number of even parts in the partitions of n into 9 parts.at n=42A309658
• Successive records of function f(x) = log(abs(pi(x) - R(x)))/log(x) where pi(x) is the number of primes <= x and R(x) is Riemann's prime counting function.at n=49A353055
• a(n) is the smallest number k such that A275235(k) = n.at n=16A354840
• Triangular array read by rows: T(n,k) = the number of closed meanders with n top arches and k closed meanders in the reduction of the closed meander by the reverse of the exterior arch splitting algorithm.at n=34A363910