# A097167 (b-file synthesized from sequence entry) 0 1 1 12 2 138 3 1542 4 16878 5 181902 6 1937118 7 20434062 8 213906558 9 2225159022 10 23026431198 11 237237880782 12 2435140927038 13 24916268343342 14 254246415090078 15 2588217735810702 16 26293959622296318 17 266645636600666862