# A073031 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 5 5 9 6 15 7 26 8 44 9 75 10 129 11 220 12 377 13 644 14 1101 15 1883 16 3219 17 5505 18 9412 19 16093 20 27517 21 47049 22 80448 23 137553 24 235195 25 402148 26 687611 27 1175712 28 2010288 29 3437288 30 5877241 31 10049189 32 17182590 33 29379620 34 50234693 35 85893702