# A231919 (b-file synthesized from sequence entry) 1 1 2 2 3 -10 4 81 5 -538 6 4096 7 -12010 8 65536 9 19683 10 1048576 11 -3840010 12 49268766 13 -63920218 14 268435456 15 1073741824 16 8546887871 17 -16921588858 18 205383589230 19 -272553384010 20 3291561314526 21 4398046511104 22 17592186044416 23 -70180457820010 24 1406245165407356 25 847288609443