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A366947
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Lexicographically earliest sequence of distinct terms > 0 such that any digit d jumping to the right over d digits lands on a nonsquare digit.
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7
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1, 2, 3, 4, 5, 6, 7, 8, 20, 22, 23, 25, 26, 9, 21, 27, 12, 24, 28, 13, 29, 15, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 50, 52, 10, 51, 53, 11, 55, 54, 14, 56, 57, 58, 59, 60, 62, 61, 63, 16, 65, 17, 64, 66, 18, 67, 42, 68, 72, 73, 75, 43, 69, 76, 70, 77, 19, 78, 71, 82, 40, 83, 85, 45, 41, 46, 47, 48, 86
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OFFSET
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1,2
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COMMENTS
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The nonsquare digits are 2, 3, 5, 6, 7 and 8. This is not a permutation of the natural numbers as 100 and 101 cannot be part of the sequence, for instance.
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LINKS
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EXAMPLE
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a(1) = 1 jumps over 1 digit and lands on 3, a nonsquare digit;
a(2) = 2 jumps over 2 digits and lands on 5, a nonsquare digit;
a(5) = 5 jumps over 5 digits and lands on the first 2 of 22, a nonsquare digit;
a(6) = 6 jumps over 6 digits and lands on the 2 of 23, a nonsquare digit;
a(9) = 20: the 2 of 20 jumps over 2 digits and lands on the last 2 of 22, a nonsquare digit;
a(9) = 20: the 0 of 20 jumps over 0 digit and lands on the first 2 of 22, a nonsquare digit; etc.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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