# A223533 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 -1 5 9 6 9 7 1 8 -1 9 18 10 9 11 -5 12 5 13 15 14 90 15 27 16 35 17 -35 18 225 19 405 20 81 21 -105 22 105 23 -35 24 630 25 567 26 81 27 1155 28 -1155 29 490 30 -105 31 4158 32 2268 33 243 34 15015 35 -15015 36 6895 37 945 38 -10206 39 -23814 40 -8748 41 -729 42 75075 43 -75075 44 35700 45 -10675 46 2835 47 -945 48 34020 49 41310 50 10935 51 729