# A049133 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 4 5 8 6 14 7 15 8 -31 9 -308 10 -1520 11 -6138 12 -22260 13 -74745 14 -234503 15 -684931 16 -1828743 17 -4249668 18 -7308296 19 -592722 20 75389838 21 487028178 22 2286167634 23 9278268220 24 34247910114 25 117081254935 26 371845391419 27 1086709633580 28 2836930639816 29 6075557104011