# A246715 (b-file synthesized from sequence entry) 1 1 2 5 3 6 4 16 5 27 6 53 7 95 8 173 9 308 10 546 11 959 12 1675 13 2909 14 5029 15 8658 16 14852 17 25395 18 43297 19 73627 20 124909 21 211456 22 357270 23 602551 24 1014551 25 1705657 26 2863493 27 4800990 28 8039608 29 13447563 30 22469261 31 37505879 32 62546285 33 104212364 34 173489994 35 288593903 36 479706787 37 796815125 38 1322659237 39 2194126122 40 3637574444 41 6027141411 42 9980945785