175354

Appears in sequences

• a(n) = T(n,n-4), array T as in A055818.at n=40A055821
• Numbers n such that (i) the sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1, and (ii) n and n+1 have the same number of prime divisors (with repetition).at n=18A237929