# A016163 (b-file synthesized from sequence entry) 0 1 1 14 2 151 3 1484 4 13981 5 128954 6 1176211 7 10664024 8 96366841 9 869254694 10 7833057871 11 70546348964 12 635161281301 13 5717672234834 14 51465153629131 15 463216900240304 16 4169104690053361 17 37522705149933374 18 337708161046665991