# A177397 (b-file synthesized from sequence entry) 1 1 2 2 3 20 4 316 5 6312 6 146256 7 3765792 8 105104272 9 3130299744 10 98434722240 11 3243746014592 12 111400312737152 13 3970597596057856 14 146403897677390336 15 5570169496704513024 16 218228733514994839808 17 8789314898568643716608