# A331351 (b-file synthesized from sequence entry) 1 1 2 70 3 1407 4 12480 5 69050 6 281946 7 931490 8 2632512 9 6598935 10 15041950 11 31740841 12 62830560 13 117855192 14 211141490 15 363551700 16 604679936 17 975561405 18 1531968822 19 2348375395 20 3522668800 21 5181705606 22 7487800650 23 10646250902