685019domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that 666p is palindromic.at n=29A030095Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4.at n=12A239845Prime numbersat n=55434