44354domain: NAppears in sequencesa(n) = Sum_{i=1..n} Sum_{j=1..i} (prime(i) - prime(j)).at n=38A062020Sum of first n 7-almost primes.at n=37A086059Numerator of the average distance among first n primes.at n=37A332094E.g.f. A(x) satisfies A(x) = exp( 2 * sinh(x * A(x)) ).at n=5A381416