25159

Appears in sequences

• Row sums of the triangle A097883.at n=36A098404
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, 1), (0, -1), (0, 1), (1, 0)}.at n=10A151412
• prime(n)*( prime(n)-n ).at n=41A161522
• Solution to the problem of finding the number of comparisons needed for optimal merging of 3 elements with n elements.at n=41A239100
• Sum of the largest parts of the partitions of n into 5 parts.at n=42A308827
• a(n) = numerator of Sum_{d|n} (pod(d)/sigma(d))where pod(k) = the product of the divisors of k (A007955) and sigma(k) = the sum of the divisors of k (A000203).at n=19A324984
• a(n) = Sum_{k=1..n} k * rad(k).at n=45A350996