# A054158 (b-file synthesized from sequence entry) 0 1 1 3 2 2 3 5 4 4 5 10 6 9 7 21 8 26 9 48 10 70 11 136 12 209 13 389 14 673 15 1235 16 2221 17 4144 18 7631 19 14358 20 26941 21 51016 22 96783 23 184560 24 352454 25 675391 26 1296503 27 2494071 28 4805389 29 9273501 30 17919559 31 34670835 32 67156871 33 130218219 34 252741267 35 490988734