# A293351 (b-file synthesized from sequence entry) 0 1 1 3 2 7 3 16 4 31 5 57 6 101 7 173 8 291 9 483 10 795 11 1301 12 2121 13 3449 14 5600 15 9081 16 14715 17 23832 18 38585 19 62457 20 101084 21 163585 22 264715 23 428348 24 693113 25 1121513 26 1814680 27 2936249 28 4750988 29 7687298 30 12438349 31 20125712 32 32564128 33 52689909 34 85254108 35 137944090