# A057464 (b-file synthesized from sequence entry) 1 0 2 1 3 4 4 7 5 8 6 26 7 33 8 64 9 116 10 201 11 1278 12 1927 13 2549 14 4054 15 5379 16 5704 17 6639 18 13785 19 18918 20 19085