# A148011 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 8 5 15 6 44 7 101 8 338 9 849 10 2736 11 7555 12 25254 13 73321 14 243290 15 762927 16 2557674 17 8162769 18 27492592 19 92263125 20 312597658 21 1055555063 22 3634419897 23 12618793174 24 43555825107 25 151808509939 26 534943761678 27 1891289995128 28 6664938234011 29 23709504232076 30 85097685030264 31 304700197997170 32 1093145659514525