70452domain: NAppears in sequencesNumber of conics which pass through 3 points and are bitangent to a general curve of order n.at n=19A060783Number of integer solutions (a_1, a_2, ... , a_8) to the equation a_1^2 + 2*a_2^2 + ... + 8*a_8^2 = 3*n.at n=31A320243