28254

Appears in sequences

• y values corresponding to the x values in A023677.at n=72A023678
• Triangle: T(n,k), k<=n: commutative groupoids with a nontrivial symmetry with n elements and k idempotents.at n=18A038023
• Denominators of continued fraction convergents to sqrt(118).at n=9A041215
• Write fundamental unit for real quadratic field of discriminant n as x + y*omega; sequence gives values of y for n == 2 mod 4.at n=24A053374
• Number of nX3 0..4 arrays with each element equal to the number its horizontal and vertical neighbors unequal to itself.at n=15A195957