# A214759 (b-file synthesized from sequence entry) 1 1 2 2 3 12 4 130 5 1980 6 38828 7 931308 8 26409696 9 864340080 10 32064955512 11 1329619343712 12 60942831972240 13 3059502805907184 14 166958986644198240 15 9840268295795334528 16 622945100439880885920 17 42156597800781887551296 18 3036974549700781049394240 19 232047627350715685524211392