5464861domain: NPropertiesPrimalityPrimeyesAppears in sequences"AGK" (ordered, elements, unlabeled) transform of 1,2,3,4...at n=20A032025Number of length n arrays of permutations of 0..n-1 with each element moved by -3 to 3 places and with no two consecutive decreases.at n=15A263678Prime numbersat n=378554