[1,3,22,66,311,933,3632,10896,38337,115011,381594, 1144782,3664507,10993521,34404964,103214892, 318365333,955095999,2918309966,8754929898, 26585715663,79757146989,241208177496,723624532488, 2182538747689,6547616243067,19713018571138]