# A152323 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 24 5 104 6 592 7 3384 8 22544 9 172448 10 1468904 11 13506934 12 134335588 13 1414062686 14 16456846630 15 203601501758 16 2712671491944