# A148351 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 15 5 44 6 147 7 495 8 1758 9 6392 10 23877 11 90960 12 352682 13 1388471 14 5536070 15 22333566 16 90999168 17 374144507 18 1550788644 19 6474314495 20 27208663317 21 115026686024 22 488951418197 23 2088810690352 24 8964559511261 25 38636855716466 26 167177656758582 27 726003687715148 28 3163527887839747