1618499domain: NAppears in sequencesNumbers n such that 12*n^2 + 13 is a square.at n=11A106256Values of x satisfying x^2 = floor(y^2/3 + y).at n=17A232771Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.at n=13A299449