# A019166 (b-file synthesized from sequence entry) 3 0 4 0 5 6 6 4 7 4 8 33 9 55 10 95 11 291 12 628 13 1309 14 3349 15 8195 16 19803 17 49968 18 127374 19 328464 20 851809 21 2221390 22 5855200 23 15465224 24 40887162 25 108565617 26 288670285 27 767774575 28 2045483183 29 5456153646 30 14564067161 31 38919814973