# A068817 (b-file synthesized from sequence entry) 1 1 2 2 3 5 4 7 5 10 6 16 7 20 8 65 9 91 10 119 11 169 12 290 13 428 14 610 15 905 16 1051 17 3488 18 4526 19 6445 20 8693 21 32059