# A150648 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 28 4 117 5 511 6 2289 7 10454 8 48363 9 226027 10 1065173 11 5050638 12 24077657 13 115270660 14 553893214 15 2669689176 16 12901958990 17 62495145519 18 303328095502 19 1474852451252 20 7182372975331 21 35026543641620 22 171030731439493 23 836074943581080 24 4091327646947020 25 20039706540762862 26 98240716119212982