1994441domain: NPropertiesPrimalityPrimeyesAppears in sequences1/8 the number of (n+1)X8 0..3 arrays with all 2X2 subblock sums the same.at n=7A1840271/8 the number of (n+1)X9 0..3 arrays with all 2X2 subblock sums the same.at n=6A184028Prime numbersat n=148533