47402

Appears in sequences

• Composite numbers n such that sigma(n)+12 = sigma(n+12).at n=12A054902
• a(n) = 625n^2 - 364n + 53.at n=8A157621
• Beach-Williams Pell numbers of type 2pq (p,q primes).at n=15A212075
• Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X 2 array.at n=31A219846
• Triangle read by rows: T(n,m) (n >= m >= 1) = number of edges in the graph formed by drawing the line segments connecting any two of the (n+1) X (m+1) lattice points in an n X m grid of squares.at n=31A333278
• Numbers k such that the equation x^2 - k*y^4 = -1 has a solution for which |y| > 2.at n=25A356488