# A374506 (b-file synthesized from sequence entry) 0 1 1 7 2 42 3 210 4 966 5 4158 6 17094 7 67782 8 261261 9 983983 10 3635632 11 13217568 12 47393892 13 167919948 14 588772152 15 2045481480 16 7048466271 17 24111291897 18 81939285582 19 276810647190 20 930096277110 21 3109797881190 22 10350813392010 23 34309326304890 24 113288127469335