# A027542 (b-file synthesized from sequence entry) 2 7 3 52 4 231 5 806 6 2451 7 6840 8 18031 9 45682 10 112443 11 270788 12 641031 13 1496574 14 3453859 15 7893232 16 17886687 17 40233578 18 89908875 19 199746108 20 441441655 21 970971190 22 2126500467 23 4638886952 24 10083091791 25 21843918306 26 47177512411 27 101602798900 28 218238002151 29 467614538222