# A213425 (b-file synthesized from sequence entry) 2 4 3 4 4 6 5 10 6 14 7 20 8 30 9 40 10 34 11 10 12 4 13 8 14 16 15 22 16 52 17 68 18 144 19 222 20 334 21 406 22 302 23 288 24 198 25 88 26 52 27 6 28 4 29 8 30 20 31 40 32 82 33 124 34 258 35 400 36 894 37 1098 38 1984 39 1960 40 2796 41 2388 42 3426 43 2290 44 2638 45 1008 46 1316 47 152