# A152167 (b-file synthesized from sequence entry) 0 1 1 -3 2 6 3 -15 4 33 5 -78 6 177 7 -411 8 942 9 -2175 10 5001 11 -11526 12 26529 13 -61107 14 140694 15 -324015 16 746097 17 -1718142 18 3956433 19 -9110859 20 20980158 21 -48312735 22 111253209 23 -256191414 24 589951041 25 -1358525283 26 3128378406 27 -7203954255 28 16589089473