# A181076 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 20 5 168 6 3659 7 204644 8 25503314 9 7434144333 10 5248999682258 11 8079852389207554 12 28328874782544308254 13 244277149833867010587231 14 4673118265932181394325207044 15 198007423467261943865049734612821