# A255135 (b-file synthesized from sequence entry) 1 1 2 5 3 16 4 41 5 102 6 242 7 558 8 1263 9 2817 10 6214 11 13583 12 29471 13 63548 14 136305 15 291019 16 618849 17 1311314 18 2769847 19 5834119 20 12257072 21 25691785 22 53738815 23 112188059 24 233796875 25 486435094 26 1010552580 27 2096469429 28 4343666482