251174domain: NAppears in sequencesa(n) = n^2*(n^3 - n^2 + n + 1)/2.at n=14A101376E.g.f.: 1/(1+x^2 - 2*x*cosh(x)).at n=7A205569Numbers k such that starting with prime(k) 3, 5, 7, 9, and 11 consecutive primes sum up to prime numbers.at n=28A288142