3730583domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of step shifted (decimated) sequence structures using exactly two different symbols.at n=26A056396Number of (n+2) X (2+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1.at n=33A257441Prime numbersat n=265449