235117domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes which are a concatenation of some permutation of the first 5 primes.at n=4A177275Number of 3Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=11A303526Prime numbersat n=20845