# A309522 (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 5 10 1 11 1 12 4 13 6 14 14 15 1 16 1 17 11 18 34 19 24 20 42 21 1 22 1 23 36 24 375 25 496 26 120 27 132 28 1 29 1 30 127 31 6306 32 27897 33 11056 34 720 35 429 36 1 37 1 38 463 39 129256 40 3156336 41 3817137 42 349504 43 5040 44 1430 45 1 46 1 47 1717 48 2877883 49 514334274 50 3501788976 51 865874115 52 14873104 53 40320 54 4862