# A013428 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 90 4 -1176 5 185094 6 5520372 7 1212373162 8 360563171248 9 54782671966798 10 28420007004983564 11 9501613654091931218 12 4976784878396711868488 13 2978748297366502676647350