# A078056 (b-file synthesized from sequence entry) 0 1 1 -3 2 7 3 -16 4 36 5 -81 6 182 7 -409 8 919 9 -2065 10 4640 11 -10426 12 23427 13 -52640 14 118281 15 -265775 16 597191 17 -1341876 18 3015168 19 -6775021 20 15223334 21 -34206521 22 76861355 23 -172705897 24 388066628 25 -871977798 26 1959316327 27 -4402543824 28 9892426177 29 -22228079851 30 49946042055 31 -112227737784