192239

Properties

Appears in sequences

• Sum of the heights of the second peaks in all Dyck paths of semilength n+2.at n=9A112308
• Unsigned row sums of triangle A118407.at n=34A118409
• a(n)=a(n-1)+a(n-2)+a(n-3)+2a(n-4); a(0)=0,a(1)=1,a(2)=3,a(3)=7.at n=18A139814
• a(n) = Sum_{k=1..n} floor(n/k)^k.at n=30A345176
• Prime numbersat n=17348