# Typo in a(51) corrected by Georg Fischer after the confirmation of Hugo Pfoertner Jul 30 2020 1 1 2 1 3 1 4 1 5 4 6 1 7 1 8 11 9 11 10 1 11 1 12 26 13 64 14 26 15 1 16 1 17 57 18 282 19 282 20 57 21 1 22 1 23 120 24 1071 25 2072 26 1071 27 120 28 1 29 1 30 247 31 3729 32 12279 33 12279 34 3729 35 247 36 1 37 1 38 502 39 12310 40 63858 41 106738 42 63858 43 12310 44 502 45 1 46 1 47 1013 48 39296 49 305464 50 781458 51 781458 52 305464 53 39296 54 1013 55 1 56 1 57 2036 58 122773 59 1382648 60 5111986 61 7743880 62 5111986 63 1382648 64 122773 65 2036 66 1 67 1 68 4083 69 378279 70 6029325 71 30980370 72 66679398 73 66679398 74 30980370 75 6029325 76 378279 77 4083 78 1 79 1 80 8178 81 1154988 82 25628762 83 178047831 84 521083252 85 735490024 86 521083252 87 178047831 88 25628762 89 1154988 90 8178 91 1