# A168621 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 4 5 1 6 1 7 9 8 9 9 1 10 1 11 28 12 42 13 28 14 1 15 1 16 125 17 250 18 250 19 125 20 1 21 1 22 726 23 1815 24 2420 25 1815 26 726 27 1 28 1 29 5047 30 15141 31 25235 32 25235 33 15141 34 5047 35 1 36 1 37 40328 38 141148 39 282296 40 352870 41 282296 42 141148 43 40328 44 1 45 1 46 362889 47 1451556 48 3386964 49 5080446 50 5080446 51 3386964 52 1451556 53 362889 54 1