# A261457 (b-file synthesized from sequence entry) 1 1 2 4 3 114 4 5016 5 39916680 6 6227020080 7 355687428090960 8 121645100408791680 9 25852016738884976277120 10 8841761993739701954543612371200 11 8222838654177922817725562840083200 12 13763753091226345046315979581580901920998400