# A275487 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 1 8 1 9 1 10 2 11 2 12 3 13 6 14 25 15 66 16 134 17 266 18 505 19 952 20 1850 21 3515 22 6643 23 12920 24 26893 25 55786 26 114992 27 234719 28 473299 29 946406 30 1884728 31 3754316 32 7467998 33 14845968 34 29628007 35 59231668 36 118528637