# A046866 (b-file synthesized from sequence entry) 1 0 2 1 3 2 4 7 5 18 6 55 7 69 8 87 9 119 10 141 11 189 12 249 13 354 14 1586 15 2135 16 2865 17 2930 18 4214 19 7167 20 67485 21 74402 22 79326 23 231349