71123domain: NAppears in sequencesNumber of strings of numbers x(i=1..n) in 0..5 with sum i^2*x(i) equal to n^2*5.at n=10A183949Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)^2, where a(0) = 1, a(1) = 3, b(0) = 2, and (a(n)) and (b(n)) are increasing complementary sequences.at n=17A296258