174724

Appears in sequences

• a(n) = (11*n)^2.at n=38A017390
• Numbers k such that sigma(k^2+1) is a perfect square.at n=27A067465
• Square perimeters of primitive Pythagorean triangles.at n=15A120089
• Squares which are a decimal concatenation of triprimes.at n=27A225151
• a(n) = (3*n+7)*n^2.at n=38A257042
• Number of (n+2)X(1+2) 0..1 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum less than the central column sum.at n=5A257354
• Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum less than the central column sum.at n=0A257359
• T(n,k) = Number of (n+2) X (k+2) 0..1 arrays with no 3 X 3 subblock diagonal sum equal to the antidiagonal sum or central row sum less than the central column sum.at n=15A257361
• T(n,k) = Number of (n+2) X (k+2) 0..1 arrays with no 3 X 3 subblock diagonal sum equal to the antidiagonal sum or central row sum less than the central column sum.at n=20A257361
• Primitive numbers whose abundance is positive and odd.at n=23A259231
• Squares whose sum of prime factors (with multiplicity) is also a perfect square.at n=24A392304