# A026884 (b-file synthesized from sequence entry) 2 1 3 6 4 29 5 132 6 591 7 2648 8 11970 9 54818 10 254868 11 1204042 12 5779861 13 28178306 14 139394333 15 698911166 16 3547422416 17 18204441884 18 94339586414 19 493148411592 20 2597699326194 21 13776442755524 22 73498738275926 23 394203045846692