# A117272 (b-file synthesized from sequence entry) 1 3 2 5 3 11 4 19 5 47 6 61 7 71 8 97 9 157 10 179 11 229 12 373 13 409 14 691 15 1231 16 1373 17 1987 18 2213 19 2557 20 3119 21 3989 22 8443 23 9311 24 17191 25 20707 26 26261 27 38281 28 41381 29 48611 30 54541 31 66889 32 74257 33 255709