# A006838 (b-file synthesized from sequence entry) 2 0 3 0 4 1 5 0 6 0 7 4 8 0 9 -1 10 0 11 28 12 -1 13 -118 14 294 15 -184 16 -441 17 1486 18 -273 19 -6464 20 8969