# A277083 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 1 5 2 6 1 7 1 8 2 9 3 10 4 11 3 12 2 13 1 14 1 15 8 16 36 17 120 18 322 19 728 20 1428 21 2472 22 3823 23 5328 24 6728 25 7728 26 8092 27 7728 28 6728 29 5328 30 3823 31 2472 32 1428 33 728 34 322 35 120 36 36 37 8 38 1 39 1 40 8 41 84 42 504 43 3178 44 15512 45 74788 46 311144 47 1252819 48 4577328 49 16087512 50 52691408 51 165911284