# A012930 (b-file synthesized from sequence entry) 0 0 1 2 2 -1 3 -4 4 18 5 138 6 -1425 7 -7368 8 207340 9 481578 10 -49899645 11 122677012 12 17081066310 13 -160273109518 14 -7677995678717 15 153514412519392 16 4141750812789720 17 -158348457721397742 18 -2343499454063177433