# This is the b168253.txt text file. # A168253: a(n) is the smallest prime q such that, for the previous prime p and the following prime r, the fraction (q-p)/(r-q) has denominator n (or 0, if such a prime does not exist). # Dated 11 December 2016. 1 5 2 3 3 23 4 89 5 139 6 199 7 113 8 1933 9 523 10 3089 11 1129 12 1669 13 2477 14 2971 15 4297 16 5591 17 1327 18 28351 19 30593 20 19333 21 16141 22 36389 23 81463 24 28229 25 31907 26 19609 27 35617 28 82073 29 44293 30 102701 31 34061 32 288583 33 221327 34 134513 35 173359 36 360091 37 404597 38 212701 39 188029 40 1251329 41 265621 42 461717 43 155921 44 544279 45 404851 46 927869 47 1100977 48 860143 49 604073 50 396733 51 1761187 52 1664123 53 1098847 54 3225539 55 2597981 56 2637799 57 492113 58 5845193 59 1349533 60 1895359 61 3117299 62 6752623 63 5826001 64 9810653 65 5518687 66 13738717 67 6958667 68 6371401 69 7743233 70 23995859 71 10343761 72 11981443 73 6034247 74 2010733 75 17652013 76 8421251 77 4652353 78 53024143 79 49269581 80 52939759 81 39175217 82 20285099 83 83751121 84 37305713 85 27915737 86 38394127 87 74086037 88 58102013 89 39389989 90 93685439 91 36271601 92 79167733 93 176254847 94 134065829 95 142414669 96 151931911 97 166726367 98 70396393 99 118953491 100 436402859 101 107534587 102 270791503 103 232423823 104 192983851 105 90438133 106 215949407 107 253878403 108 202551667 109 327966101 110 47326693 111 213158279 112 651174767 113 519653371 114 895858039 115 607010093 116 1406518549 117 189695659 118 216668603 119 673919143 120 726953347 121 367876529 122 790115023 123 848758531 124 468991619 125 387096133 126 1498086431 127 1202442089 # This is the end of the b text file.