759002504domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(432).at n=19A041822Number of perfect matchings on a Möbius strip of width 3 and length 2n.at n=13A263200a(n) = ((1 - sqrt(3))^n + (1 + sqrt(3))^n)/2^floor((n - 1)/2); n-th row common denominator of A321118.at n=30A321119