# A375500 (b-file synthesized from sequence entry) 0 1 1 2 2 11 3 36 4 117 5 342 6 967 7 2648 8 7137 9 19018 10 50347 11 132716 12 348941 13 915950 14 2401911 15 6294640 16 16489889 17 43187778 18 113094099 19 296127940 20 775343821 21 2029991062 22 5314771031 23 13914551256 24 36429253657 25 95373809882 26 249693147107 27 653707202748 28 1711431003597 29 4480589921838