# A290953 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 16 5 45 6 136 7 434 8 1436 9 4869 10 16804 11 58795 12 208022 13 742911 14 2674452 15 9694858 16 35357684 17 129644805 18 477638716 19 1767263207 20 6564120438 21 24466267039 22 91482563660 23 343059613671 24 1289904147346 25 4861946401475 26 18367353072176 27 69533550916029 28 263747951750386 29 1002242216651395 30 3814986502092332