# A234252 (b-file synthesized from sequence entry) 1 -1 2 1 3 0 4 23 5 112 6 2637 7 28928 8 705259 9 12021504 10 337390073 11 7752749056 12 252186614847 13 7261683740672 14 271082082053317 15 9359536638984192 16 396049017137512403 17 15920162462882529280 18 754792662169555947633 19 34587513064809080815616 20 1818644980834260579498343