# A148446 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 6 4 17 5 49 6 170 7 567 8 1938 9 7048 10 25692 11 94221 12 355939 13 1358403 14 5196687 15 20169943 16 79178940 17 311341768 18 1233884011 19 4934811327 20 19786170788 21 79683695476 22 323069731308 23 1313959977470 24 5358853327284 25 21960167792626 26 90282256030304 27 371942734756058 28 1537483777024417 29 6374355298767209