# A171080 (b-file synthesized from sequence entry) 0 1 1 3 2 45 3 945 4 14175 5 467775 6 638512875 7 1915538625 8 488462349375 9 194896477400625 10 32157918771103125 11 2218896395206115625 12 3028793579456347828125 13 9086380738369043484375 14 3952575621190533915703125 15 28304394023345413370350078125 16 7217620475953080409439269921875