# A048041 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 1 5 2 6 8 7 20 8 30 9 63 10 126 11 182 12 392 13 844 14 1270 15 2800 16 5995 17 9020 18 19595 19 41951 20 63518 21 138866 22 299411 23 455966 24 997640 25 2154104 26 3290520 27 7201692 28 15584085 29 23878212 30 52311408 31 113406028 32 174179258 33 381766253 34 828748052