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A201804
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Numbers k such that 90*k + 11 is prime.
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17
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0, 1, 2, 3, 5, 7, 9, 10, 12, 13, 15, 16, 19, 20, 21, 23, 26, 27, 28, 29, 30, 31, 36, 41, 43, 47, 49, 52, 54, 56, 58, 61, 62, 65, 68, 69, 70, 72, 73, 75, 79, 80, 83, 87, 90, 92, 97, 98, 100, 103, 104, 105, 106, 112, 113, 114, 118, 124, 125
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OFFSET
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1,3
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COMMENTS
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This sequence was generated by adding 12 Fibonacci-like sequences. Looking at 90*k+11 modulo 9 and modulo 10 we see that all entries of A142317 have digital root 2 and last digit 1. (Reverting the process is an application of the Chinese remainder theorem)
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LINKS
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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