# A097926 (b-file synthesized from sequence entry) 5 18 6 36 7 70 8 134 9 258 10 498 11 960 12 1850 13 3566 14 6874 15 13250 16 25540 17 49230 18 94894 19 182914 20 352578 21 679616 22 1310002 23 2525110 24 4867306 25 9382034 26 18084452 27 34858902 28 67192694 29 129518082 30 249654130 31 481223808 32 927588714 33 1787984734 34 3446451386