# A239305 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 6 4 13 5 31 6 69 7 153 8 332 9 712 10 1509 11 3169 12 6603 13 13669 14 28142 15 57674 16 117741 17 239587 18 486193 19 984353 20 1989056 21 4012636 22 8083717 23 16266181 24 32698903 25 65678221 26 131827874 27 264447198 28 530221357 29 1062664807 30 2129046429