381924

Appears in sequences

• Square associated with twin primes (p,p+2): p(p+2) + 1. Square of the average of twin primes.at n=27A075369
• Squares for which both the sum of the digits and the product of the digits are cubes.at n=19A117687
• a(1)=1; at n>=2, a(n) = least square > a(n-1) such that sum a(1)+...+a(n) is a prime number.at n=28A139033
• Number of right triangles on a centered hexagonal grid of size n.at n=12A241225
• Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.at n=5A258540
• Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.at n=2A258543
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.at n=30A258545
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum.at n=33A258545
• Exponential abundant numbers that are squares of squarefree numbers.at n=32A391428