# A043859 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 5 5 10 6 15 7 21 8 42 9 63 10 85 11 170 12 255 13 341 14 682 15 1023 16 1365 17 2730 18 4095 19 5461 20 10922 21 16383 22 21845 23 43690 24 65535 25 87381 26 174762 27 262143 28 279620 29 279622 30 279623 31 279624 32 279625 33 279627 34 279628 35 279629 36 279630 37 279649