# A173383 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 2 4 3 5 4 6 6 7 8 8 12 9 17 10 27 11 41 12 67 13 109 14 187 15 319 16 568 17 1013 18 1855 19 3416 20 6404 21 12075 22 23056 23 44265 24 85737 25 166918 26 327094 27 643843 28 1273776 29 2529846 30 5045015 31 10094831 32 20267469 33 40811048 34 82413473 35 166854359 36 338648851 37 688887026 38 1404384063 39 2868791176 40 5871429462 41 12038444069