# A143972 (b-file synthesized from sequence entry) 1 1 2 4 3 1 4 7 5 4 6 5 7 10 8 7 9 20 10 16 11 13 12 10 13 35 14 64 15 53 16 16 17 13 18 50 19 112 20 212 21 175 22 19 23 16 24 65 25 160 26 371 27 700 28 578 29 22 30 19 31 80 32 208 33 530 34 1225 35 2312 36 1909 37 25 38 28 39 95 40 256 41 689 42 1750 43 4046 44 7636 45 6305 46 28 47 25 48 110 49 304 50 848 51 2275 52 5780 53 23363 54 25220 55 20824