# A049887 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 2 5 3 6 7 7 13 8 21 9 28 10 76 11 151 12 297 13 580 14 1105 15 1989 16 3170 17 4275 18 11719 19 23437 20 46869 21 93724 22 187393 23 374565 24 748322 25 1494579 26 2980609 27 5926068 28 11711612 29 22862295 30 43492303 31 78253603 32 124726515 33 168218818 34 461164150