# A277411 (b-file synthesized from sequence entry) 1 0 2 3 3 13 4 38 5 94 6 213 7 459 8 960 9 1972 10 4007 11 8089 12 16266 13 32634 14 65385 15 130903 16 261956 17 524080 18 1048347 19 2096901 20 4194030 21 8388310 22 16776893 23 33554083 24 67108488 25 134217324 26 268435023 27 536870449 28 1073741330 29 2147483122 30 4294966737 31 8589933999 32 17179868556 33 34359737704 34 68719476035 35 137438952733 36 274877906166 37 549755813070 38 1099511626917 39 2199023254651 40 4398046510160