给定 n,求有多少树满足:任意非叶子节点的儿子不少于 2 , 叶子节点个数为 n本栏目推荐文章LLM series: Transformer[Debug Series] Don't capture reference unless it's transientGeneralised f-Mean Aggregation for Graph Neural NetworksCisco Firepower 2100 Series FTD Software 7.4.1 & ASA Software 9.20.2Cisco Firepower 4100 Series FTD Software 7.4.1 & ASA Software 9.20.2Cisco Firepower 9300 Series FTD Software 7.4.1 & ASA Software 9.20.2Cisco Secure Firewall 4200 Series FTD Software 7.4.1 & ASA Software 9.20.2Cisco Secure Firewall 3100 Series, Firepower Threat Defense (FTD) Software 7.4.1 & ASA Software 9.20.2Cisco Firepower 1000 Series FTD Software 7.4.1 & ASA Software 9.20.2Cisco Catalyst 9000 Series Switches, IOS-XE Release IOSXE-17.13.1 EDSeries-Parallel Parallel Networks Series 10253series-parallel parallel networks series series-parallel 10253 parallel series parallel-comparator pandas-series software firepower series cisco time-series catalyst switches release series