# A034185 (b-file synthesized from sequence entry) 1 1 2 3 3 11 4 21 5 61 6 111 7 309 8 565 9 1563 10 2859 11 7907 12 14459 13 39991 14 73117 15 202227 16 369729 17 1022587 18 1869581 19 5170829 20 9453757 21 26146909 22 47804041 23 132214959 24 241726811 25 668560673 26 1222320359 27 3380656559 28 6180808253 29 17094691953 30 31253992007 31 86441342981