# A116774 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 21 5 69 6 198 7 498 8 1121 9 2305 10 4402 11 7910 12 13509 13 22101 14 34854 15 53250 16 79137 17 114785 18 162946 19 226918 20 310613 21 418629 22 556326 23 729906 24 946497 25 1214241 26 1542386 27 1941382 28 2422981 29 3000341 30 3688134