712530
domain: N
Appears in sequences
- Coefficients of Chebyshev polynomials.at n=24A005584
- Integers that can be expressed as a product of triangular numbers in 3 different ways.at n=15A110904
- a(n) = n*binomial(n+4, 4).at n=26A174002
- a(n) = 6*binomial(n+1,5).at n=24A253945
- Imaginary parts of b(n) sequence used to define A143056.at n=29A272665
- The least common multiple of 1 + n^2 and 1 + n^3.at n=17A281661
- Numbers k such that the determinant of the Vandermonde matrix of their digits is equal to sigma(k), the sum of divisors of k.at n=15A307586
- a(0) = 1, a(n) = 5*binomial(6*(n-1),n-1), for n > 0.at n=6A380607
- Integers x such that there exist two integers 0<x<=y<=z such that psi(x) = psi(y) = psi(z) = x + y + z.at n=24A385852