# A055537 (b-file synthesized from sequence entry) 3 7 4 64 5 352 6 1485 7 5245 8 16290 9 45830 10 119042 11 289367 12 664878 13 1455136 14 3051762 15 6163153 16 12033700 17 22792660 18 41997387 19 75463460 20 132510654 21 227803866 22 384031745 23 635752338 24 1034842530 25 1658130458 26 2617965384 27 4076707044