# A049435 (b-file synthesized from sequence entry) 10 1 11 55 12 1705 13 39325 14 752752 15 12662650 16 193754990 17 2758334150 18 37112163803 19 477297033785 20 5917584964655 21 71187132291275 22 835143799377954 23 9593401297313460 24 108254081784931500 25 1203163392175387500 26 13199555372846848005 27 143197070509423605675