# A028150 (b-file synthesized from sequence entry) 0 1 1 31 2 614 3 9926 4 142995 5 1915077 6 24414088 7 300588892 8 3608146949 9 42498447563 10 493420114122 11 5665664143698 12 64496965543063 13 729264545514289 14 8201673484111916 15 91847355888191144 16 1025058980614782537