# A150025 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 18 4 67 5 265 6 1099 7 4643 8 20058 9 87824 10 389913 11 1748536 12 7912724 13 36077145 14 165557041 15 764080657 16 3543683898 17 16507628879 18 77195125901 19 362254825221 20 1705274626268 21 8050258264036 22 38101717384395 23 180760898609370 24 859416339775966 25 4094188981018980 26 19540298801674099 27 93418913985941418