# A134695 (b-file synthesized from sequence entry) 1 2 2 3 3 6 4 9 5 10 6 12 7 14 8 16 9 18 10 44 11 72 12 90 13 114 14 116 15 126 16 231 17 291 18 524 19 718 20 1065 21 1143 22 1806