157249domain: NAppears in sequencesOdd numbers k for which 23 is the smallest positive i with Jacobi symbol J(i,k) != 1.at n=29A112079Expansion of 1 / (1 - Sum_{i>=1, j>=1} x^(i*(j + 1))).at n=24A327798Integers k such that the number of divisors of k^2 - 1 (A347191) sets a new record.at n=34A347192