# A317546 (b-file synthesized from sequence entry) 1 1 2 3 3 7 4 18 5 42 6 104 7 246 8 594 9 1416 10 3391 11 8084 12 19312 13 46041 14 109829 15 261827 16 624254 17 1487981 18 3546883 19 8453770 20 20149014 21 48021864 22 114451536 23 272769936 24 650084053 25 1549312743