1347543domain: NAppears in sequencesPositive integers n such that all the gaps prime(n+i+1) - prime(n+i) (i = 0, ..., 12) belong to the set {g > 0: g - 1 and g + 1 are twin prime}.at n=3A244308Positive integers n such that all the differences prime(n+j) - prime(n+i) with 0 <= i < j <= 9 are practical numbers.at n=7A244349