# A067852 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 6 5 10 6 11 7 18 8 20 9 32 10 90 11 129 12 188 13 244 14 678 15 688 16 756 17 1081 18 1322 19 1477 20 19758 21 21351 22 29518 23 43187 24 49978 25 50342 26 95708 27 182326 28 248253