113555791domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of ways to tile an 8 X n rectangle with 1 X 1 and 2 X 2 tiles.at n=9A063652Number of ways to tile a 9 X n rectangle with 1 X 1 and 2 X 2 tiles.at n=8A063653Prime numbersat n=6495060