# A300846 (b-file synthesized from sequence entry) 0 0 1 0 2 24 3 324 4 1728 5 6000 6 16200 7 37044 8 75264 9 139968 10 243000 11 399300 12 627264 13 949104 14 1391208 15 1984500 16 2764800 17 3773184 18 5056344 19 6666948 20 8664000 21 11113200 22 14087304 23 17666484 24 21938688 25 27000000 26 32955000 27 39917124 28 48009024 29 57362928 30 68121000