# A274162 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 3 5 5 6 8 7 13 8 21 9 34 10 55 11 89 12 144 13 234 14 379 15 615 16 997 17 1617 18 2622 19 4252 20 6895 21 11181