# A132878 (b-file synthesized from sequence entry) 0 1 1 6 2 72 3 2240 4 157200 5 20017032 6 3986643136 7 1133413590528 8 433294691800320 9 213579235442893760 10 131576955596091312384 11 98894873879740831706112 12 88957131079138422705160192 13 94267354032238753666544536320