# A012572 (b-file synthesized from sequence entry) 0 1 1 0 2 2 3 -3 4 16 5 -80 6 488 7 -3339 8 26472 9 -241128 10 2416002 11 -26168835 12 310984452 13 -4057771068 14 56774212350 15 -841821751575 16 13356966503088 17 -227284196307984 18 4085254725230514 19 -76911822855270819