7,13,103,53,11,79,211,41,73,281,......
Antreas P. Hatzipolakis
xpolakis at otenet.gr
Mon May 15 09:02:42 CEST 2000
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Quoting JHC - RKG,_The Book of Numbers_, p. 162:
prime denominator p 3 7 11 13 17 19 23 29 31 37 41 43 47 53 59
number of circles 2 1 5 2 1 1 1 1 2 12 8 2 1 4 1
length of each circle 1 6 2 6 16 18 22 28 15 3 5 21 46 13 58
prime 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137
number 1 2 2 9 6 2 2 1 25 3 2 1 1 3 1 17
length 60 33 35 8 13 41 44 96 4 34 53 108 112 42 130 8
prime 139 149 151 157 163 167 173 179 181 191 193 197 199 211
number 3 1 2 2 2 1 2 1 1 2 1 2 2 7
length 46 148 75 78 81 166 86 178 180 95 192 98 99 30
prime 223 227 229 233 239 241 251 257 263 269 271 277 281 283
number 1 2 1 1 34 8 5 1 1 1 54 4 10 2
length 222 113 228 232 7 30 50 256 262 268 5 69 28 141
Cycle structures for prime deniminators p, 3<=p<=283
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From the above table we get the sequence of smallest primes whose
the number of circles is n:
(In other words: The sequence of smallest primes p such that the period of 1/p
is of length (p-1)/n.)
7,3,103,53,11,79,211,41,73,281,......
This sequence was not found in EIS:
<q>I am sorry, but the terms 7,3,103,53,11,79,211,41,73,281
do not match anything in the table.</q>
Note: The sequence of the number of the circles:
2,1,5,2,1,1,1,1,2,12,8,2,1,4,1,.... is A006556 in EIS
Antreas
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