891784domain: NAppears in sequencesNumber of strings of numbers x(i=1..n) in 0..5 with sum i^2*x(i)^2 equal to n^2*25.at n=12A184236Solution of the complementary equation a(n) = 2*a(n-2) - b(n-1) + n, where a(0) = 4, a(1) = 5, b(0) = 1, and (a(n)) and (b(n)) are increasing complementary sequences.at n=37A295068