# A000286 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 4 4 5 5 11 6 20 7 36 8 65 9 119 10 218 11 412 12 770 13 1466 14 2784 15 5322 16 10226 17 19691 18 38048 19 73665 20 142927 21 277822 22 540851 23 1054502 24 2058507 25 4023164 26 7871226 27 15414517 28 30213010 29 59266164 30 116343183 31 228545303 32 449240025 33 883569304 34 1738768584 35 3423466797 36 6743729031