# A106397 (b-file synthesized from sequence entry) 0 1 1 1 2 0 3 -3 4 -11 5 -30 6 -72 7 -162 8 -353 9 -756 10 -1598 11 -3334 12 -6868 13 -14002 14 -28368 15 -57374 16 -116233 17 -236165 18 -480781 19 -978293 20 -1984231 21 -4003365 22 -8028201 23 -16011129 24 -31812545 25 -63129395 26 -125452526 27 -250216779 28 -501567302