94736domain: NAppears in sequencesSmallest a(n) > a(n-1) such that a(n)^2+a(n-1)^2 is a perfect square, with a(1)=5.at n=33A076671Smallest a(n)>a(n-1) such that a(n)^2+a(n-1)^2 is a perfect square, a(1)=9.at n=33A076674a(n) = n*(n + 1)*(19*n - 16)/6.at n=31A237618a(1)=a(2)=1, a(n) = ceiling(Pi*a(n-1) - a(n-2)), n>2.at n=12A258911