22655

Appears in sequences

• Positive numbers y such that y^2 is of the form x^2+(x+23)^2 with integer x.at n=13A156567
• a(n) = 6*a(n-1)-a(n-2) for n > 2; a(1)=23, a(2)=115.at n=4A156568
• a(n) = Sum_{k=0..n} binomial(n,k) * binomial(n+k,k) * binomial(2*k,k) / (k+1).at n=5A349768