# A052817 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 3 4 6 5 10 6 22 7 43 8 97 9 211 10 481 11 1090 12 2535 13 5870 14 13774 15 32383 16 76607 17 181709 18 432865 19 1033657 20 2475869 21 5943440 22 14300623 23 34475031 24 83266498 25 201441441 26 488098768 27 1184353854 28 2877625762 29 7000359245 30 17049321176