# A084178 (b-file synthesized from sequence entry) 0 0 1 1 2 0 3 3 4 -1 5 10 6 -7 7 35 8 -36 9 127 10 -165 11 474 12 -715 13 1807 14 -3004 15 6995 16 -12393 17 27370 18 -50559 19 107883 20 -204820 21 427351 22 -826045 23 1698458 24 -3321891 25 6765175 26 -13333932 27 26985675 28 -53457121 29 107746282 30 -214146295 31 430470899 32 -857417220 33 1720537327 34 -3431847189