# A126612 (b-file synthesized from sequence entry) 1 1 2 1 3 7 4 24 5 12 6 52 7 24 8 39 9 252 10 112 11 371 12 184 13 5772 14 44649 15 61939 16 151505 17 64125 18 533040 19 407635 20 273249 21 3901012 22 718187 23 3527063 24 9522163 25 23128315 26 20121642 27 337342290 28 388787370