# A375982 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 6 4 8 5 11 6 14 7 18 8 25 9 37 10 53 11 75 12 105 13 145 14 198 15 274 16 383 17 537 18 752 19 1053 20 1468 21 2041 22 2838 23 3954 24 5513 25 7693 26 10737 27 14979 28 20880 29 29100 30 40558 31 56538 32 78828 33 109926 34 153289 35 213736 36 297991 37 415448 38 579198 39 807519 40 1125889 41 1569813 42 2188752