9220117domain: NPropertiesPrimalityPrimeyesAppears in sequencesCoefficient expansion of the characteristic polynomial of the {3,4,5} simplex matrix: M = {{0, 3, 0}, {0, 0, 4}, {1, 1, 1}}; p(x)=12 + 4 x + x^2 - x^3.at n=14A147834Prime numbersat n=616171