# A157164 (b-file synthesized from sequence entry) 1 1 2 -1 3 -1 4 -8 5 -16 6 -74 7 -526 8 -6768 9 -30024 10 -291072 11 -2805408 12 -29134896 13 -374664720 14 -5276228736 15 -67692115440 16 -1404936248064 17 -16610113920768 18 -301439595923712 19 -5110200130727808 20 -103584959322338304