# A003813 (b-file synthesized from sequence entry) 1 699612310033197642547200 2 124190524600592082795473760093457612800 3 447244452196213365088128369288351077766266880000 4 78616578542037111790447631835937500000000000000000000000 5 13191313011550511408913226688319815618147473583337425366223421440000