# A006462 (b-file synthesized from sequence entry) 0 1 1 0 2 -1 3 -2 4 -2 5 0 6 2 7 4 8 3 9 0 10 -1 11 6 12 28 13 72 14 139 15 242 16 407 17 722 18 1215 19 2348 20 3753 21 7186 22 9558 23 21800 24 16576 25 61234 26 -7978 27 226136 28 -446034 29 1118180 30 -3180033 31 6428640 32 -24607343 33 56904504