3199997domain: NPropertiesPrimalityPrimeyesAppears in sequencesLargest prime < n^5.at n=18A173832Square array read by antidiagonals upwards: M(n,k) is the initial occurrence of first prime p1 of consecutive primes p1, p2, where p2 - p1 = 2*k, and p1, p2 span a multiple of 10^n, n>=1, k>=1.at n=23A287050Prime numbersat n=230209