# A369328 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 9 4 23 5 63 6 176 7 491 8 1362 9 3762 10 10369 11 28559 12 78653 13 216638 14 596761 15 1643966 16 4528932 17 12476737 18 34372059 19 94691059 20 260862508 21 718644363 22 1979777046 23 5454042866 24 15025219777 25 41392641187 26 114031662049 27 314143279634 28 865426307713 29 2384143611738 30 6568023995156