# A133405 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 1 4 3 5 9 6 26 7 78 8 234 9 703 10 2109 11 6327 12 18980 13 56940 14 170820 15 512461 16 1537383 17 4612149 18 13836446 19 41509338 20 124528014 21 373584043 22 1120752129 23 3362256387 24 10086769160 25 30260307480 26 90780922440 27 272342767321 28 817028301963 29 2451084905889 30 7353254717666