# A217144 (b-file synthesized from sequence entry) 0 1 1 0 2 4 3 21 4 204 5 2500 6 38709 7 730420 8 16409180 9 430786429 10 13019414196 11 447437830704 12 17306961847705 13 746907935199264 14 35695643204860420 15 1876878693983656605 16 107956500727342113004 17 6758630146906528885412 18 458470139353155531447869