# A146781 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 5 8 17 9 37 10 69 11 119 12 413 13 1361 14 4953 15 21841 16 100255 17 486625 18 2729263 19 14571959 20 98507721 21 677047259