# A234715 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 33 4 825 5 113025 6 5538225 7 60920475 8 46360481475 9 330503872435275 10 20160736218551775 11 1687675389591187637025 12 145175524688023551724527525 13 166370135063802174111446471957325 14 194941377468714112878127508925972294225 15 8038017817167489016303831575544615607779425