# A298854 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 3 5 2 6 6 7 11 8 11 9 6 10 24 11 50 12 61 13 50 14 24 15 120 16 274 17 379 18 379 19 274 20 120 21 720 22 1764 23 2668 24 3023 25 2668 26 1764 27 720 28 5040 29 13068 30 21160 31 26193 32 26193 33 21160 34 13068 35 5040 36 40320 37 109584 38 187388 39 248092 40 270961 41 248092 42 187388 43 109584 44 40320 45 362880 46 1026576 47 1836396 48 2565080 49 2995125 50 2995125 51 2565080 52 1836396 53 1026576 54 362880