233983domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of arrays of -3..3 integers x(1..n) with every x(i) in a subsequence of length 1, 2, 3 or 4 with sum zero.at n=7A193705T(n,k)=Number of arrays of -k..k integers x(1..n) with every x(i) being in a subsequence of length 1, 2, 3 or 4 with sum zero.at n=52A193710Prime numbersat n=20745