147014domain: NAppears in sequencesNumber of nondecreasing integer sequences of length 25 with sum zero and sum of absolute values 2n.at n=17A158159Numbers n such that sopfr(n-1) | (n+sopfr(n+1)) and sopfr(n+1) | (n+sopfr(n-1)), where sopfr = A001414 (sum of prime factors with repetition).at n=11A196994