268065

Appears in sequences

• a(n) = Sum_{m=1..n} T(m,n+1-m), array T as in A048887.at n=21A048888
• First integer reached when starting with n/floor(log_2(n)) and iterating the map x -> x*ceiling(x) A075107(n) times, or -1 if no integer is ever reached.at n=16A075108
• First integer reached when starting with n/floor(sqrt(n)) and iterating the map x -> x*ceiling(x) A075120(n) times, or -1 if no integer is ever reached.at n=17A075121
• Consider recurrence b(0) = (2n+1)/2, b(n) = b(n-1)*ceiling(b(n-1)); sequence gives first integer reached.at n=3A081853
• Consider recurrence b(0) = (2n+1)/2, b(n) = b(n-1)*ceiling(b(n-1)); sequence gives first integer reached.at n=21A081853
• a(n) = (8*n - 3)*(4*n - 1)*(8*n^2 - 5*n + 1).at n=6A081854
• The hyper-Wiener index of the Kneser graph K(n,2) (n>=5).at n=32A228307