# A148008 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 8 5 15 6 44 7 91 8 328 9 759 10 2636 11 6215 12 23704 13 59033 14 220830 15 556591 16 2236464 17 5852471 18 22914792 19 60201671 20 249117796 21 672658877 22 2717264406 23 7345845087 24 31036174078 25 85697043495 26 353999837354 27 977097682671 28 4193053543778 29 11773887108191 30 49467365565802 31 138720176659439 32 602452741040616