# A147054 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 7 7 21 8 47 9 193 10 927 11 6473 12 56977 13 532817 14 5726035 15 80429995 16 1421425107 17 32032166721 18 887240799013 19 28935423830217 20 1147385224061533 21 56743981461830039