# A124613 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 14 4 34 5 74 6 159 7 324 8 657 9 1286 10 2488 11 4702 12 8790 13 16146 14 29326 15 52526 16 93064 17 162910 18 282267 19 483792 20 821182 21 1380052 22 2297972 23 3791220 24 6200379 25 10053018 26 16165158 27 25782702 28 40801449 29 64075416 30 99882597 31 154577022 32 237551012 33 362577214 34 549750200