318271domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = 5^n-4^n-3^n-2^n-1.at n=8A147976Square array T(n,k) = k^n - Sum_{0 < i < k} e(i)*(k-i)^n where e(i) = 1 if the partial sum up to this term would remain <= k^n, or 0 else; n, k >= 1; read by falling antidiagonals.at n=73A332099Prime numbersat n=27462