# A146765 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 10 5 1 6 1 7 27 8 27 9 1 10 1 11 68 12 102 13 68 14 1 15 1 16 165 17 330 18 330 19 165 20 1 21 1 22 390 23 975 24 1300 25 975 26 390 27 1 28 1 29 903 30 2709 31 4515 32 4515 33 2709 34 903 35 1 36 1 37 2056 38 7196 39 14392 40 17990 41 14392 42 7196 43 2056 44 1 45 1 46 4617 47 18468 48 43092 49 64638 50 64638 51 43092 52 18468 53 4617 54 1 55 1