# A255676 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 15 5 81 6 561 7 4683 8 44415 9 479241 10 5793921 11 77332563 12 1130944815 13 17984844801 14 308888337681 15 5698762943643 16 112401325405215 17 2360158641832761 18 52564270139375841 19 1237645528139173923 20 30717272450961249615 21 801500394828539219121