# A178488 (b-file synthesized from sequence entry) 1 2 2 4 3 9 4 10 5 11 6 12 7 15 8 25 9 31 10 46 11 53 12 78 13 318 14 615 15 955 16 1646 17 2669 18 2672 19 3515 20 7689