91125000
domain: N
Appears in sequences
- For the numbers k that can be expressed as k = w+x = y*z with w*x = (y+z)^3 where w, x, y, and z are all positive integers, this sequence gives the corresponding values of w*x.at n=26A057445
- Numbers k such that sigma(k) + tau(k) is a prime.at n=22A064205
- Numbers k such that sigma(k) - tau(k) is a prime.at n=24A065061
- Numbers k such that sigma(k) + tau(k) and sigma(k) - tau(k) are primes.at n=12A065116
- a(n) is the number of shapes of balanced trees with constant branching factor 6 and n nodes. The node is balanced if the size, measured in nodes, of each pair of its children differ by at most one node.at n=20A131892
- a(n) is the number of shapes of balanced trees with constant branching factor 6 and n nodes. The node is balanced if the size, measured in nodes, of each pair of its children differ by at most one node.at n=30A131892
- Cubes c(n) such that cube(n)-square(n)-1 and cube(n)+square(n)+1 are primes.at n=17A155930
- a(n) = n^6*(n + 1)/2.at n=15A168526
- Cubes which when divided by their digital sum, become square.at n=17A236220
- a(n) = phi(n^7).at n=14A239442
- Triangle read by rows: coefficients T(n,k) of a binomial decomposition of n as Sum(k=0..n)T(n,k)*binomial(n,k).at n=44A244142
- Triangle read by rows: terms T(n,k) of a binomial decomposition of n as Sum(k=0..n)T(n,k).at n=44A244143