# A203756 (b-file synthesized from sequence entry) 1 1 2 2 3 4624 4 147968 5 5124555396 6 830177974152 7 142070471498727424 8 72740081407348441088 9 38931932500357955277610000 10 48664915625447444097012500000 11 63249728823972809508391754919837696