# A218411 (b-file synthesized from sequence entry) 1 280 2 18620 3 411264 4 804384 5 871416 6 1222144 7 1284192 8 164989440 9 270138960 10 318729600 11 326781000 12 396168192 13 481572000 14 623397600 15 675347400 16 995248800 17 3444711424 18 4426793280 19 307030348800 20 465036042240 21 880719036120