# A000608 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 10 5 44 6 238 7 1650 8 14512 9 163341 10 2360719 11 43944974 12 1055019099 13 32664984238 14 1303143553205 15 66900392672168 16 4413439778321689