# A150507 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 25 4 102 5 418 6 1822 7 7930 8 35834 9 161326 10 745277 11 3428471 12 16073766 13 75051209 14 355567823 15 1678216641 16 8012934452 17 38128613404 18 183143821040 19 876997842618 20 4232442545636 21 20369705463788 22 98680751392001 23 476873322718406 24 2317449590232091 25 11236950192377100 26 54750669538493457 27 266229930746142702