# A309845 (b-file synthesized from sequence entry) 0 1 1 2 2 1 3 4 4 5 5 32 6 61 7 544 8 1385 9 15872 10 50521 11 707584 12 2702765 13 44736512 14 199360981 15 3807514624 16 19391512145 17 419730685952 18 2404879675441 19 58177770225664 20 370371188237525 21 9902996106248192 22 69348874393137901 23 2030847773013704704 24 15514534163557086905 25 493842960380415967232