466545

Appears in sequences

• Numbers k such that sigma(k + sigma(k)) = sigma((k+1) + sigma(k+1)).at n=19A246915
• a(n) is the number of integer values of the function F_2n(x) = Product_{i=0..2n-1} (x + i) / Sum_{i=0..2n-1} (x + i).at n=14A370601