# A061575 (b-file synthesized from sequence entry) 0 0 1 1 2 0 3 2 4 2 5 7 6 14 7 41 8 107 9 307 10 871 11 2546 12 7497 13 22380 14 67366 15 204517 16 625132 17 1922700 18 5945469 19 18473841 20 57649699 21 180602285 22 567772883 23 1790663427 24 5663969707 25 17963483548 26 57112388657 27 181994536484 28 581168157605