117139domain: NAppears in sequencesa(n) = (n^4 + n)/2 (Row sums of an n X n X n magic cube, when it exists).at n=22A027441Magic constant of smallest order-n perfect magic cube.at n=21A109130a(n) = n*(n + 1)*(11*n^2 + 11*n - 10)/24.at n=22A264854