[1,3,9,27,79,231,675,1971,5755,16803,49059,143235, 418195,1220979,3564819,10407987,30387571,88720755, 259032627,756281907,2208070579,6446770227, 18822245427,54954172467,160446376243,468445588275, 1367692273971,3993168476979,11658612678451]