38789713domain: NPropertiesPrimalityPrimeyesAppears in sequencesExpansion of (1-x)^(-1)/(1+x-2*x^2+x^3).at n=24A077899Number of nX2 0..1 arrays with every element unequal to 0, 1 or 2 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=22A317759Prime numbersat n=2364326